Merge branch 'development' into feature/website/top-bar-redesign

* development: (63 commits) Update The Ocean logo Fix artifacts paths Create an artifacts folder Introduce a var Add removeHexPrefix util method CHeck if ABI exists Improve the readability of the check for should compile Use named constants Add a comment Fix comments Rename args to constructor-args Fix a typo Define a separator const Move artifacts from src/artifacts to artifacts/v1 Fix sol-cov to work with the new artifacts format Implement new artifacts format Publish Updated CHANGELOGS Make node types a dependency Fix type errors in CSS properties ...
author: Brandon Millman <brandon.millman@gmail.com> 2018-05-09 02:04:31 +0800
committer: Brandon Millman <brandon.millman@gmail.com> 2018-05-09 02:04:31 +0800
commit: 607d738342a839788b59e0dee63849ea447331bc (patch)
tree: d90078ec0e95357a2fe9fb4af65f9135e9e44408
parent: b8c611de2b82657a274c55007ffc5d72807eae7f (diff)
parent: e9d70b7b1edb5089a6e5e2a9ee8c964ab4b4d4ab (diff)
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171 files changed, 2597 insertions, 6159 deletions
diff --git a/.gitignore b/.gitignore
index 83538fdca..7fed1959e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -77,7 +77,7 @@ bin/
 packages/sol-cov/test/fixtures/artifacts
 packages/metacoin/artifacts
 packages/0x.js/test/artifacts
-packages/migrations/src/artifacts
+packages/migrations/artifacts/1.0.0
 
 # generated contract wrappers
 packages/0x.js/src/contract_wrappers/generated/
diff --git a/.prettierignore b/.prettierignore
index 024d0b548..f12fdf870 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -2,6 +2,6 @@ lib
 .nyc_output
 /packages/contracts/src/artifacts
 /packages/metacoin/artifacts
-/packages/migrations/src/artifacts
+/packages/migrations/artifacts/1.0.0
 package.json
 scripts/postpublish_utils.js
diff --git a/CODEOWNERS b/CODEOWNERS
deleted file mode 100644
index b0a5366ed..000000000
--- a/CODEOWNERS
+++ /dev/null
@@ -1 +0,0 @@
-*        @abandeali1 @BMillman19 @dekz @fabioberger @LogvinovLeon @Recmo
diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md
new file mode 100644
index 000000000..4b3ef1f07
--- /dev/null
+++ b/CODE_OF_CONDUCT.md
@@ -0,0 +1,46 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as contributors and maintainers pledge to making participation in our project and our community a harassment-free experience for everyone, regardless of age, body size, disability, ethnicity, gender identity and expression, level of experience, nationality, personal appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment include:
+
+*   Using welcoming and inclusive language
+*   Being respectful of differing viewpoints and experiences
+*   Gracefully accepting constructive criticism
+*   Focusing on what is best for the community
+*   Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+*   The use of sexualized language or imagery and unwelcome sexual attention or advances
+*   Trolling, insulting/derogatory comments, and personal or political attacks
+*   Public or private harassment
+*   Publishing others' private information, such as a physical or electronic address, without explicit permission
+*   Other conduct which could reasonably be considered inappropriate in a professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable behavior and are expected to take appropriate and fair corrective action in response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct, or to ban temporarily or permanently any contributor for other behaviors that they deem inappropriate, threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces when an individual is representing the project or its community. Examples of representing a project or community include using an official project e-mail address, posting via an official social media account, or acting as an appointed representative at an online or offline event. Representation of a project may be further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project team at team@0xproject.com. The project team will review and investigate all complaints, and will respond in a way that it deems appropriate to the circumstances. The project team is obligated to maintain confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good faith may face temporary or permanent repercussions as determined by other members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, available at [http://contributor-covenant.org/version/1/4][version]
+
+[homepage]: http://contributor-covenant.org
+[version]: http://contributor-covenant.org/version/1/4/
diff --git a/packages/0x.js/CHANGELOG.json b/packages/0x.js/CHANGELOG.json
index ef4bb1e07..bdc575903 100644
--- a/packages/0x.js/CHANGELOG.json
+++ b/packages/0x.js/CHANGELOG.json
@@ -1,12 +1,43 @@
 [
     {
-        "version": "0.36.4",
+        "timestamp": 1525477860,
+        "version": "0.37.2",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1525453812,
+        "version": "0.37.1",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "version": "0.37.0",
         "changes": [
             {
                 "note": "Fixed expiration watcher comparator to handle orders with equal expiration times",
                 "pr": 526
+            },
+            {
+                "note": "Update Web3 Provider Engine to 14.0.4",
+                "pr": 555
+            },
+            {
+                "note": "Add `zeroEx.getProvider()`",
+                "pr": 559
+            },
+            {
+                "note": "Move `ZeroExError.InvalidSignature` to `@0xproject/order-utils` `OrderError.InvalidSignature`",
+                "pr": 559
             }
-        ]
+        ],
+        "timestamp": 1525428773
     },
     {
         "version": "0.36.3",
diff --git a/packages/0x.js/CHANGELOG.md b/packages/0x.js/CHANGELOG.md
index f800b86db..353e0de29 100644
--- a/packages/0x.js/CHANGELOG.md
+++ b/packages/0x.js/CHANGELOG.md
@@ -5,6 +5,21 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.37.2 - _May 5, 2018_
+
+    * Dependencies updated
+
+## v0.37.1 - _May 4, 2018_
+
+    * Dependencies updated
+
+## v0.37.0 - _May 4, 2018_
+
+    * Fixed expiration watcher comparator to handle orders with equal expiration times (#526)
+    * Update Web3 Provider Engine to 14.0.4 (#555)
+    * Add `zeroEx.getProvider()` (#559)
+    * Move `ZeroExError.InvalidSignature` to `@0xproject/order-utils` `OrderError.InvalidSignature` (#559)
+
 ## v0.36.3 - _April 18, 2018_
 
     * Move @0xproject/migrations to devDependencies
diff --git a/packages/0x.js/package.json b/packages/0x.js/package.json
index e7cdff09e..a23e01938 100644
--- a/packages/0x.js/package.json
+++ b/packages/0x.js/package.json
@@ -1,6 +1,6 @@
 {
     "name": "0x.js",
-    "version": "0.36.3",
+    "version": "0.37.2",
     "description": "A javascript library for interacting with the 0x protocol",
     "keywords": [
         "0x.js",
@@ -21,7 +21,7 @@
         "test": "run-s clean test:commonjs",
         "test:coverage": "nyc npm run test --all && yarn coverage:report:lcov",
         "coverage:report:lcov": "nyc report --reporter=text-lcov > coverage/lcov.info",
-        "update_artifacts": "for i in ${npm_package_config_contracts}; do copyfiles -u 4 ../migrations/src/artifacts/$i.json test/artifacts; done;",
+        "update_artifacts": "for i in ${npm_package_config_contracts}; do copyfiles -u 4 ../migrations/artifacts/1.0.0/$i.json test/artifacts; done;",
         "clean": "shx rm -rf _bundles lib test_temp scripts",
         "build:umd:prod": "NODE_ENV=production webpack",
         "build:commonjs": "tsc && yarn update_artifacts && copyfiles -u 2 './src/compact_artifacts/**/*.json' ./lib/src/compact_artifacts && copyfiles -u 3 './lib/src/monorepo_scripts/**/*' ./scripts",
@@ -61,12 +61,12 @@
         "node": ">=6.0.0"
     },
     "devDependencies": {
-        "@0xproject/deployer": "^0.4.1",
-        "@0xproject/dev-utils": "^0.3.6",
-        "@0xproject/migrations": "^0.0.3",
-        "@0xproject/monorepo-scripts": "^0.1.18",
-        "@0xproject/subproviders": "^0.9.0",
-        "@0xproject/tslint-config": "^0.4.16",
+        "@0xproject/deployer": "^0.4.3",
+        "@0xproject/dev-utils": "^0.4.1",
+        "@0xproject/migrations": "^0.0.5",
+        "@0xproject/monorepo-scripts": "^0.1.19",
+        "@0xproject/subproviders": "^0.10.1",
+        "@0xproject/tslint-config": "^0.4.17",
         "@types/bintrees": "^1.0.2",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^2.2.42",
@@ -93,17 +93,18 @@
         "tslint": "5.8.0",
         "typedoc": "0xProject/typedoc",
         "typescript": "2.7.1",
-        "web3-provider-engine": "^13.0.1",
+        "web3-provider-engine": "^14.0.4",
         "webpack": "^3.1.0"
     },
     "dependencies": {
-        "@0xproject/assert": "^0.2.7",
-        "@0xproject/base-contract": "^0.2.1",
-        "@0xproject/json-schemas": "^0.7.21",
-        "@0xproject/types": "^0.6.1",
-        "@0xproject/typescript-typings": "^0.2.0",
-        "@0xproject/utils": "^0.5.2",
-        "@0xproject/web3-wrapper": "^0.6.1",
+        "@0xproject/assert": "^0.2.9",
+        "@0xproject/base-contract": "^0.3.1",
+        "@0xproject/json-schemas": "^0.7.23",
+        "@0xproject/order-utils": "^0.0.4",
+        "@0xproject/types": "^0.6.3",
+        "@0xproject/typescript-typings": "^0.3.1",
+        "@0xproject/utils": "^0.6.1",
+        "@0xproject/web3-wrapper": "^0.6.3",
         "bintrees": "^1.0.2",
         "bn.js": "^4.11.8",
         "ethereumjs-abi": "^0.6.4",
diff --git a/packages/0x.js/src/0x.ts b/packages/0x.js/src/0x.ts
index 94d97c23e..78f9f6beb 100644
--- a/packages/0x.js/src/0x.ts
+++ b/packages/0x.js/src/0x.ts
@@ -1,4 +1,11 @@
 import { schemas, SchemaValidator } from '@0xproject/json-schemas';
+import {
+    generatePseudoRandomSalt,
+    getOrderHashHex,
+    isValidOrderHash,
+    isValidSignature,
+    signOrderHashAsync,
+} from '@0xproject/order-utils';
 import { ECSignature, Order, Provider, SignedOrder, TransactionReceiptWithDecodedLogs } from '@0xproject/types';
 import { AbiDecoder, BigNumber, intervalUtils } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
@@ -19,7 +26,6 @@ import { OrderStateWatcherConfig, ZeroExConfig, ZeroExError } from './types';
 import { assert } from './utils/assert';
 import { constants } from './utils/constants';
 import { decorators } from './utils/decorators';
-import { signatureUtils } from './utils/signature_utils';
 import { utils } from './utils/utils';
 
 /**
@@ -33,7 +39,6 @@ export class ZeroEx {
      * this constant for your convenience.
      */
     public static NULL_ADDRESS = constants.NULL_ADDRESS;
-
     /**
      * An instance of the ExchangeWrapper class containing methods for interacting with the 0x Exchange smart contract.
      */
@@ -59,6 +64,15 @@ export class ZeroEx {
     public proxy: TokenTransferProxyWrapper;
     private _web3Wrapper: Web3Wrapper;
     /**
+     * Generates a pseudo-random 256-bit salt.
+     * The salt can be included in a 0x order, ensuring that the order generates a unique orderHash
+     * and will not collide with other outstanding orders that are identical in all other parameters.
+     * @return  A pseudo-random 256-bit number that can be used as a salt.
+     */
+    public static generatePseudoRandomSalt(): BigNumber {
+        return generatePseudoRandomSalt();
+    }
+    /**
      * Verifies that the elliptic curve signature `signature` was generated
      * by signing `data` with the private key corresponding to the `signerAddress` address.
      * @param   data          The hex encoded data signed by the supplied signature.
@@ -67,27 +81,15 @@ export class ZeroEx {
      * @return  Whether the signature is valid for the supplied signerAddress and data.
      */
     public static isValidSignature(data: string, signature: ECSignature, signerAddress: string): boolean {
-        assert.isHexString('data', data);
-        assert.doesConformToSchema('signature', signature, schemas.ecSignatureSchema);
-        assert.isETHAddressHex('signerAddress', signerAddress);
-        const normalizedSignerAddress = signerAddress.toLowerCase();
-
-        const isValidSignature = signatureUtils.isValidSignature(data, signature, normalizedSignerAddress);
-        return isValidSignature;
+        return isValidSignature(data, signature, signerAddress);
     }
     /**
-     * Generates a pseudo-random 256-bit salt.
-     * The salt can be included in a 0x order, ensuring that the order generates a unique orderHash
-     * and will not collide with other outstanding orders that are identical in all other parameters.
-     * @return  A pseudo-random 256-bit number that can be used as a salt.
+     * Computes the orderHash for a supplied order.
+     * @param   order   An object that conforms to the Order or SignedOrder interface definitions.
+     * @return  The resulting orderHash from hashing the supplied order.
      */
-    public static generatePseudoRandomSalt(): BigNumber {
-        // BigNumber.random returns a pseudo-random number between 0 & 1 with a passed in number of decimal places.
-        // Source: https://mikemcl.github.io/bignumber.js/#random
-        const randomNumber = BigNumber.random(constants.MAX_DIGITS_IN_UNSIGNED_256_INT);
-        const factor = new BigNumber(10).pow(constants.MAX_DIGITS_IN_UNSIGNED_256_INT - 1);
-        const salt = randomNumber.times(factor).round();
-        return salt;
+    public static getOrderHashHex(order: Order | SignedOrder): string {
+        return getOrderHashHex(order);
     }
     /**
      * Checks if the supplied hex encoded order hash is valid.
@@ -97,12 +99,7 @@ export class ZeroEx {
      * @return  Whether the supplied orderHash has the expected format.
      */
     public static isValidOrderHash(orderHash: string): boolean {
-        // Since this method can be called to check if any arbitrary string conforms to an orderHash's
-        // format, we only assert that we were indeed passed a string.
-        assert.isString('orderHash', orderHash);
-        const schemaValidator = new SchemaValidator();
-        const isValidOrderHash = schemaValidator.validate(orderHash, schemas.orderHashSchema).valid;
-        return isValidOrderHash;
+        return isValidOrderHash(orderHash);
     }
     /**
      * A unit amount is defined as the amount of a token above the specified decimal places (integer part).
@@ -133,17 +130,6 @@ export class ZeroEx {
         return baseUnitAmount;
     }
     /**
-     * Computes the orderHash for a supplied order.
-     * @param   order   An object that conforms to the Order or SignedOrder interface definitions.
-     * @return  The resulting orderHash from hashing the supplied order.
-     */
-    @decorators.syncZeroExErrorHandler
-    public static getOrderHashHex(order: Order | SignedOrder): string {
-        assert.doesConformToSchema('order', order, schemas.orderSchema);
-        const orderHashHex = utils.getOrderHashHex(order);
-        return orderHashHex;
-    }
-    /**
      * Instantiates a new ZeroEx instance that provides the public interface to the 0x.js library.
      * @param   provider    The Provider instance you would like the 0x.js library to use for interacting with
      *                      the Ethereum network.
@@ -205,6 +191,13 @@ export class ZeroEx {
         (this.etherToken as any)._setNetworkId(networkId);
     }
     /**
+     * Get the provider instance currently used by 0x.js
+     * @return  Web3 provider instance
+     */
+    public getProvider(): Provider {
+        return this._web3Wrapper.getProvider();
+    }
+    /**
      * Get user Ethereum addresses available through the supplied web3 provider available for sending transactions.
      * @return  An array of available user Ethereum addresses.
      */
@@ -229,41 +222,12 @@ export class ZeroEx {
         signerAddress: string,
         shouldAddPersonalMessagePrefix: boolean,
     ): Promise<ECSignature> {
-        assert.isHexString('orderHash', orderHash);
-        await assert.isSenderAddressAsync('signerAddress', signerAddress, this._web3Wrapper);
-        const normalizedSignerAddress = signerAddress.toLowerCase();
-
-        let msgHashHex = orderHash;
-        if (shouldAddPersonalMessagePrefix) {
-            const orderHashBuff = ethUtil.toBuffer(orderHash);
-            const msgHashBuff = ethUtil.hashPersonalMessage(orderHashBuff);
-            msgHashHex = ethUtil.bufferToHex(msgHashBuff);
-        }
-
-        const signature = await this._web3Wrapper.signMessageAsync(normalizedSignerAddress, msgHashHex);
-
-        // HACK: There is no consensus on whether the signatureHex string should be formatted as
-        // v + r + s OR r + s + v, and different clients (even different versions of the same client)
-        // return the signature params in different orders. In order to support all client implementations,
-        // we parse the signature in both ways, and evaluate if either one is a valid signature.
-        const validVParamValues = [27, 28];
-        const ecSignatureVRS = signatureUtils.parseSignatureHexAsVRS(signature);
-        if (_.includes(validVParamValues, ecSignatureVRS.v)) {
-            const isValidVRSSignature = ZeroEx.isValidSignature(orderHash, ecSignatureVRS, normalizedSignerAddress);
-            if (isValidVRSSignature) {
-                return ecSignatureVRS;
-            }
-        }
-
-        const ecSignatureRSV = signatureUtils.parseSignatureHexAsRSV(signature);
-        if (_.includes(validVParamValues, ecSignatureRSV.v)) {
-            const isValidRSVSignature = ZeroEx.isValidSignature(orderHash, ecSignatureRSV, normalizedSignerAddress);
-            if (isValidRSVSignature) {
-                return ecSignatureRSV;
-            }
-        }
-
-        throw new Error(ZeroExError.InvalidSignature);
+        return signOrderHashAsync(
+            this._web3Wrapper.getProvider(),
+            orderHash,
+            signerAddress,
+            shouldAddPersonalMessagePrefix,
+        );
     }
     /**
      * Waits for a transaction to be mined and returns the transaction receipt.
diff --git a/packages/0x.js/src/contract_wrappers/exchange_wrapper.ts b/packages/0x.js/src/contract_wrappers/exchange_wrapper.ts
index 7cda70f16..6ddaaaf4f 100644
--- a/packages/0x.js/src/contract_wrappers/exchange_wrapper.ts
+++ b/packages/0x.js/src/contract_wrappers/exchange_wrapper.ts
@@ -1,4 +1,5 @@
 import { schemas } from '@0xproject/json-schemas';
+import { getOrderHashHex } from '@0xproject/order-utils';
 import {
     BlockParamLiteral,
     DecodedLogArgs,
@@ -570,7 +571,7 @@ export class ExchangeWrapper extends ContractWrapper {
             ? SHOULD_VALIDATE_BY_DEFAULT
             : orderTransactionOpts.shouldValidate;
         if (shouldValidate) {
-            const orderHash = utils.getOrderHashHex(order);
+            const orderHash = getOrderHashHex(order);
             const unavailableTakerTokenAmount = await this.getUnavailableTakerAmountAsync(orderHash);
             OrderValidationUtils.validateCancelOrderThrowIfInvalid(
                 order,
@@ -629,7 +630,7 @@ export class ExchangeWrapper extends ContractWrapper {
             : orderTransactionOpts.shouldValidate;
         if (shouldValidate) {
             for (const orderCancellationRequest of orderCancellationRequests) {
-                const orderHash = utils.getOrderHashHex(orderCancellationRequest.order);
+                const orderHash = getOrderHashHex(orderCancellationRequest.order);
                 const unavailableTakerTokenAmount = await this.getUnavailableTakerAmountAsync(orderHash);
                 OrderValidationUtils.validateCancelOrderThrowIfInvalid(
                     orderCancellationRequest.order,
@@ -801,7 +802,7 @@ export class ExchangeWrapper extends ContractWrapper {
     ): Promise<void> {
         assert.doesConformToSchema('order', order, schemas.orderSchema);
         assert.isValidBaseUnitAmount('cancelTakerTokenAmount', cancelTakerTokenAmount);
-        const orderHash = utils.getOrderHashHex(order);
+        const orderHash = getOrderHashHex(order);
         const unavailableTakerTokenAmount = await this.getUnavailableTakerAmountAsync(orderHash);
         OrderValidationUtils.validateCancelOrderThrowIfInvalid(
             order,
diff --git a/packages/0x.js/src/types.ts b/packages/0x.js/src/types.ts
index 151204928..ae9f98c5f 100644
--- a/packages/0x.js/src/types.ts
+++ b/packages/0x.js/src/types.ts
@@ -27,7 +27,6 @@ export enum ZeroExError {
     TokenContractDoesNotExist = 'TOKEN_CONTRACT_DOES_NOT_EXIST',
     UnhandledError = 'UNHANDLED_ERROR',
     UserHasNoAssociatedAddress = 'USER_HAS_NO_ASSOCIATED_ADDRESSES',
-    InvalidSignature = 'INVALID_SIGNATURE',
     ContractNotDeployedOnNetwork = 'CONTRACT_NOT_DEPLOYED_ON_NETWORK',
     InsufficientAllowanceForTransfer = 'INSUFFICIENT_ALLOWANCE_FOR_TRANSFER',
     InsufficientBalanceForTransfer = 'INSUFFICIENT_BALANCE_FOR_TRANSFER',
diff --git a/packages/0x.js/src/utils/assert.ts b/packages/0x.js/src/utils/assert.ts
index 5e8004cd0..2588a4d09 100644
--- a/packages/0x.js/src/utils/assert.ts
+++ b/packages/0x.js/src/utils/assert.ts
@@ -8,13 +8,13 @@ import { BigNumber } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';
 
-import { signatureUtils } from '../utils/signature_utils';
+import { isValidSignature } from '@0xproject/order-utils';
 
 export const assert = {
     ...sharedAssert,
     isValidSignature(orderHash: string, ecSignature: ECSignature, signerAddress: string) {
-        const isValidSignature = signatureUtils.isValidSignature(orderHash, ecSignature, signerAddress);
-        this.assert(isValidSignature, `Expected order with hash '${orderHash}' to have a valid signature`);
+        const isValid = isValidSignature(orderHash, ecSignature, signerAddress);
+        this.assert(isValid, `Expected order with hash '${orderHash}' to have a valid signature`);
     },
     async isSenderAddressAsync(
         variableName: string,
@@ -28,8 +28,4 @@ export const assert = {
             `Specified ${variableName} ${senderAddressHex} isn't available through the supplied web3 provider`,
         );
     },
-    async isUserAddressAvailableAsync(web3Wrapper: Web3Wrapper): Promise<void> {
-        const availableAddresses = await web3Wrapper.getAvailableAddressesAsync();
-        this.assert(!_.isEmpty(availableAddresses), 'No addresses were available on the provided web3 provider');
-    },
 };
diff --git a/packages/0x.js/src/utils/constants.ts b/packages/0x.js/src/utils/constants.ts
index 06beec8e2..07da6745d 100644
--- a/packages/0x.js/src/utils/constants.ts
+++ b/packages/0x.js/src/utils/constants.ts
@@ -3,7 +3,6 @@ import { BigNumber } from '@0xproject/utils';
 export const constants = {
     NULL_ADDRESS: '0x0000000000000000000000000000000000000000',
     TESTRPC_NETWORK_ID: 50,
-    MAX_DIGITS_IN_UNSIGNED_256_INT: 78,
     INVALID_JUMP_PATTERN: 'invalid JUMP at',
     OUT_OF_GAS_PATTERN: 'out of gas',
     INVALID_TAKER_FORMAT: 'instance.taker is not of a type(s) string',
diff --git a/packages/0x.js/src/utils/exchange_transfer_simulator.ts b/packages/0x.js/src/utils/exchange_transfer_simulator.ts
index 9a920c643..f8301f5c2 100644
--- a/packages/0x.js/src/utils/exchange_transfer_simulator.ts
+++ b/packages/0x.js/src/utils/exchange_transfer_simulator.ts
@@ -5,6 +5,7 @@ import * as _ from 'lodash';
 import { TokenWrapper } from '../contract_wrappers/token_wrapper';
 import { BalanceAndProxyAllowanceLazyStore } from '../stores/balance_proxy_allowance_lazy_store';
 import { ExchangeContractErrs, TradeSide, TransferType } from '../types';
+import { constants } from '../utils/constants';
 
 enum FailureReason {
     Balance = 'balance',
@@ -66,6 +67,13 @@ export class ExchangeTransferSimulator {
         tradeSide: TradeSide,
         transferType: TransferType,
     ): Promise<void> {
+        // HACK: When simulating an open order (e.g taker is NULL_ADDRESS), we don't want to adjust balances/
+        // allowances for the taker. We do however, want to increase the balance of the maker since the maker
+        // might be relying on those funds to fill subsequent orders or pay the order's fees.
+        if (from === constants.NULL_ADDRESS && tradeSide === TradeSide.Taker) {
+            await this._increaseBalanceAsync(tokenAddress, to, amountInBaseUnits);
+            return;
+        }
         const balance = await this._store.getBalanceAsync(tokenAddress, from);
         const proxyAllowance = await this._store.getProxyAllowanceAsync(tokenAddress, from);
         if (proxyAllowance.lessThan(amountInBaseUnits)) {
diff --git a/packages/0x.js/src/utils/order_validation_utils.ts b/packages/0x.js/src/utils/order_validation_utils.ts
index f32bf43d0..a13c3dc04 100644
--- a/packages/0x.js/src/utils/order_validation_utils.ts
+++ b/packages/0x.js/src/utils/order_validation_utils.ts
@@ -1,3 +1,4 @@
+import { getOrderHashHex, OrderError } from '@0xproject/order-utils';
 import { Order, SignedOrder } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
 import * as _ from 'lodash';
@@ -113,7 +114,7 @@ export class OrderValidationUtils {
         zrxTokenAddress: string,
         expectedFillTakerTokenAmount?: BigNumber,
     ): Promise<void> {
-        const orderHash = utils.getOrderHashHex(signedOrder);
+        const orderHash = getOrderHashHex(signedOrder);
         const unavailableTakerTokenAmount = await this._exchangeWrapper.getUnavailableTakerAmountAsync(orderHash);
         OrderValidationUtils._validateRemainingFillAmountNotZeroOrThrow(
             signedOrder.takerTokenAmount,
@@ -124,31 +125,12 @@ export class OrderValidationUtils {
         if (!_.isUndefined(expectedFillTakerTokenAmount)) {
             fillTakerTokenAmount = expectedFillTakerTokenAmount;
         }
-        const fillMakerTokenAmount = OrderValidationUtils._getPartialAmount(
+        await OrderValidationUtils.validateFillOrderBalancesAllowancesThrowIfInvalidAsync(
+            exchangeTradeEmulator,
+            signedOrder,
             fillTakerTokenAmount,
-            signedOrder.takerTokenAmount,
-            signedOrder.makerTokenAmount,
-        );
-        await exchangeTradeEmulator.transferFromAsync(
-            signedOrder.makerTokenAddress,
-            signedOrder.maker,
             signedOrder.taker,
-            fillMakerTokenAmount,
-            TradeSide.Maker,
-            TransferType.Trade,
-        );
-        const makerFeeAmount = OrderValidationUtils._getPartialAmount(
-            fillTakerTokenAmount,
-            signedOrder.takerTokenAmount,
-            signedOrder.makerFee,
-        );
-        await exchangeTradeEmulator.transferFromAsync(
             zrxTokenAddress,
-            signedOrder.maker,
-            signedOrder.feeRecipient,
-            makerFeeAmount,
-            TradeSide.Maker,
-            TransferType.Fee,
         );
     }
     public async validateFillOrderThrowIfInvalidAsync(
@@ -161,9 +143,9 @@ export class OrderValidationUtils {
         if (fillTakerTokenAmount.eq(0)) {
             throw new Error(ExchangeContractErrs.OrderFillAmountZero);
         }
-        const orderHash = utils.getOrderHashHex(signedOrder);
+        const orderHash = getOrderHashHex(signedOrder);
         if (!ZeroEx.isValidSignature(orderHash, signedOrder.ecSignature, signedOrder.maker)) {
-            throw new Error(ZeroExError.InvalidSignature);
+            throw new Error(OrderError.InvalidSignature);
         }
         const unavailableTakerTokenAmount = await this._exchangeWrapper.getUnavailableTakerAmountAsync(orderHash);
         OrderValidationUtils._validateRemainingFillAmountNotZeroOrThrow(
diff --git a/packages/0x.js/src/utils/signature_utils.ts b/packages/0x.js/src/utils/signature_utils.ts
deleted file mode 100644
index 46f167339..000000000
--- a/packages/0x.js/src/utils/signature_utils.ts
+++ /dev/null
@@ -1,45 +0,0 @@
-import { ECSignature } from '@0xproject/types';
-import * as ethUtil from 'ethereumjs-util';
-
-export const signatureUtils = {
-    isValidSignature(data: string, signature: ECSignature, signerAddress: string): boolean {
-        const dataBuff = ethUtil.toBuffer(data);
-        const msgHashBuff = ethUtil.hashPersonalMessage(dataBuff);
-        try {
-            const pubKey = ethUtil.ecrecover(
-                msgHashBuff,
-                signature.v,
-                ethUtil.toBuffer(signature.r),
-                ethUtil.toBuffer(signature.s),
-            );
-            const retrievedAddress = ethUtil.bufferToHex(ethUtil.pubToAddress(pubKey));
-            return retrievedAddress === signerAddress;
-        } catch (err) {
-            return false;
-        }
-    },
-    parseSignatureHexAsVRS(signatureHex: string): ECSignature {
-        const signatureBuffer = ethUtil.toBuffer(signatureHex);
-        let v = signatureBuffer[0];
-        if (v < 27) {
-            v += 27;
-        }
-        const r = signatureBuffer.slice(1, 33);
-        const s = signatureBuffer.slice(33, 65);
-        const ecSignature: ECSignature = {
-            v,
-            r: ethUtil.bufferToHex(r),
-            s: ethUtil.bufferToHex(s),
-        };
-        return ecSignature;
-    },
-    parseSignatureHexAsRSV(signatureHex: string): ECSignature {
-        const { v, r, s } = ethUtil.fromRpcSig(signatureHex);
-        const ecSignature: ECSignature = {
-            v,
-            r: ethUtil.bufferToHex(r),
-            s: ethUtil.bufferToHex(s),
-        };
-        return ecSignature;
-    },
-};
diff --git a/packages/0x.js/src/utils/utils.ts b/packages/0x.js/src/utils/utils.ts
index c8bcd907e..af1125632 100644
--- a/packages/0x.js/src/utils/utils.ts
+++ b/packages/0x.js/src/utils/utils.ts
@@ -1,59 +1,9 @@
-import { Order, SignedOrder, SolidityTypes } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
-import BN = require('bn.js');
-import * as ethABI from 'ethereumjs-abi';
-import * as ethUtil from 'ethereumjs-util';
-import * as _ from 'lodash';
 
 export const utils = {
-    /**
-     * Converts BigNumber instance to BN
-     * The only reason we convert to BN is to remain compatible with `ethABI. soliditySHA3` that
-     * expects values of Solidity type `uint` to be passed as type `BN`.
-     * We do not use BN anywhere else in the codebase.
-     */
-    bigNumberToBN(value: BigNumber) {
-        return new BN(value.toString(), 10);
-    },
     spawnSwitchErr(name: string, value: any): Error {
         return new Error(`Unexpected switch value: ${value} encountered for ${name}`);
     },
-    getOrderHashHex(order: Order | SignedOrder): string {
-        const orderParts = [
-            { value: order.exchangeContractAddress, type: SolidityTypes.Address },
-            { value: order.maker, type: SolidityTypes.Address },
-            { value: order.taker, type: SolidityTypes.Address },
-            { value: order.makerTokenAddress, type: SolidityTypes.Address },
-            { value: order.takerTokenAddress, type: SolidityTypes.Address },
-            { value: order.feeRecipient, type: SolidityTypes.Address },
-            {
-                value: utils.bigNumberToBN(order.makerTokenAmount),
-                type: SolidityTypes.Uint256,
-            },
-            {
-                value: utils.bigNumberToBN(order.takerTokenAmount),
-                type: SolidityTypes.Uint256,
-            },
-            {
-                value: utils.bigNumberToBN(order.makerFee),
-                type: SolidityTypes.Uint256,
-            },
-            {
-                value: utils.bigNumberToBN(order.takerFee),
-                type: SolidityTypes.Uint256,
-            },
-            {
-                value: utils.bigNumberToBN(order.expirationUnixTimestampSec),
-                type: SolidityTypes.Uint256,
-            },
-            { value: utils.bigNumberToBN(order.salt), type: SolidityTypes.Uint256 },
-        ];
-        const types = _.map(orderParts, o => o.type);
-        const values = _.map(orderParts, o => o.value);
-        const hashBuff = ethABI.soliditySHA3(types, values);
-        const hashHex = ethUtil.bufferToHex(hashBuff);
-        return hashHex;
-    },
     getCurrentUnixTimestampSec(): BigNumber {
         return new BigNumber(Date.now() / 1000).round();
     },
diff --git a/packages/0x.js/test/0x.js_test.ts b/packages/0x.js/test/0x.js_test.ts
index 838ee7080..6dccdaea7 100644
--- a/packages/0x.js/test/0x.js_test.ts
+++ b/packages/0x.js/test/0x.js_test.ts
@@ -17,8 +17,6 @@ const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
 chaiSetup.configure();
 const expect = chai.expect;
 
-const SHOULD_ADD_PERSONAL_MESSAGE_PREFIX = false;
-
 describe('ZeroEx library', () => {
     let zeroEx: ZeroEx;
     before(async () => {
@@ -63,14 +61,12 @@ describe('ZeroEx library', () => {
         };
         const address = '0x5409ed021d9299bf6814279a6a1411a7e866a631';
         it("should return false if the data doesn't pertain to the signature & address", async () => {
-            expect(ZeroEx.isValidSignature('0x0', signature, address)).to.be.false();
             return expect(
                 (zeroEx.exchange as any)._isValidSignatureUsingContractCallAsync('0x0', signature, address),
             ).to.become(false);
         });
         it("should return false if the address doesn't pertain to the signature & data", async () => {
             const validUnrelatedAddress = '0x8b0292b11a196601ed2ce54b665cafeca0347d42';
-            expect(ZeroEx.isValidSignature(dataHex, signature, validUnrelatedAddress)).to.be.false();
             return expect(
                 (zeroEx.exchange as any)._isValidSignatureUsingContractCallAsync(
                     dataHex,
@@ -81,45 +77,16 @@ describe('ZeroEx library', () => {
         });
         it("should return false if the signature doesn't pertain to the dataHex & address", async () => {
             const wrongSignature = _.assign({}, signature, { v: 28 });
-            expect(ZeroEx.isValidSignature(dataHex, wrongSignature, address)).to.be.false();
             return expect(
                 (zeroEx.exchange as any)._isValidSignatureUsingContractCallAsync(dataHex, wrongSignature, address),
             ).to.become(false);
         });
         it('should return true if the signature does pertain to the dataHex & address', async () => {
-            const isValidSignatureLocal = ZeroEx.isValidSignature(dataHex, signature, address);
-            expect(isValidSignatureLocal).to.be.true();
             return expect(
                 (zeroEx.exchange as any)._isValidSignatureUsingContractCallAsync(dataHex, signature, address),
             ).to.become(true);
         });
     });
-    describe('#generateSalt', () => {
-        it('generates different salts', () => {
-            const equal = ZeroEx.generatePseudoRandomSalt().eq(ZeroEx.generatePseudoRandomSalt());
-            expect(equal).to.be.false();
-        });
-        it('generates salt in range [0..2^256)', () => {
-            const salt = ZeroEx.generatePseudoRandomSalt();
-            expect(salt.greaterThanOrEqualTo(0)).to.be.true();
-            const twoPow256 = new BigNumber(2).pow(256);
-            expect(salt.lessThan(twoPow256)).to.be.true();
-        });
-    });
-    describe('#isValidOrderHash', () => {
-        it('returns false if the value is not a hex string', () => {
-            const isValid = ZeroEx.isValidOrderHash('not a hex');
-            expect(isValid).to.be.false();
-        });
-        it('returns false if the length is wrong', () => {
-            const isValid = ZeroEx.isValidOrderHash('0xdeadbeef');
-            expect(isValid).to.be.false();
-        });
-        it('returns true if order hash is correct', () => {
-            const isValid = ZeroEx.isValidOrderHash('0x' + Array(65).join('0'));
-            expect(isValid).to.be.true();
-        });
-    });
     describe('#toUnitAmount', () => {
         it('should throw if invalid baseUnit amount supplied as argument', () => {
             const invalidBaseUnitAmount = new BigNumber(1000000000.4);
@@ -152,106 +119,6 @@ describe('ZeroEx library', () => {
             );
         });
     });
-    describe('#getOrderHashHex', () => {
-        const expectedOrderHash = '0x39da987067a3c9e5f1617694f1301326ba8c8b0498ebef5df4863bed394e3c83';
-        const fakeExchangeContractAddress = '0xb69e673309512a9d726f87304c6984054f87a93b';
-        const order: Order = {
-            maker: constants.NULL_ADDRESS,
-            taker: constants.NULL_ADDRESS,
-            feeRecipient: constants.NULL_ADDRESS,
-            makerTokenAddress: constants.NULL_ADDRESS,
-            takerTokenAddress: constants.NULL_ADDRESS,
-            exchangeContractAddress: fakeExchangeContractAddress,
-            salt: new BigNumber(0),
-            makerFee: new BigNumber(0),
-            takerFee: new BigNumber(0),
-            makerTokenAmount: new BigNumber(0),
-            takerTokenAmount: new BigNumber(0),
-            expirationUnixTimestampSec: new BigNumber(0),
-        };
-        it('calculates the order hash', async () => {
-            const orderHash = ZeroEx.getOrderHashHex(order);
-            expect(orderHash).to.be.equal(expectedOrderHash);
-        });
-        it('throws a readable error message if taker format is invalid', async () => {
-            const orderWithInvalidtakerFormat = {
-                ...order,
-                taker: (null as any) as string,
-            };
-            const expectedErrorMessage =
-                'Order taker must be of type string. If you want anyone to be able to fill an order - pass ZeroEx.NULL_ADDRESS';
-            expect(() => ZeroEx.getOrderHashHex(orderWithInvalidtakerFormat)).to.throw(expectedErrorMessage);
-        });
-    });
-    describe('#signOrderHashAsync', () => {
-        let stubs: Sinon.SinonStub[] = [];
-        let makerAddress: string;
-        before(async () => {
-            const availableAddreses = await zeroEx.getAvailableAddressesAsync();
-            makerAddress = availableAddreses[0];
-        });
-        afterEach(() => {
-            // clean up any stubs after the test has completed
-            _.each(stubs, s => s.restore());
-            stubs = [];
-        });
-        it('Should return the correct ECSignature', async () => {
-            const orderHash = '0x6927e990021d23b1eb7b8789f6a6feaf98fe104bb0cf8259421b79f9a34222b0';
-            const expectedECSignature = {
-                v: 27,
-                r: '0x61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc33',
-                s: '0x40349190569279751135161d22529dc25add4f6069af05be04cacbda2ace2254',
-            };
-            const ecSignature = await zeroEx.signOrderHashAsync(
-                orderHash,
-                makerAddress,
-                SHOULD_ADD_PERSONAL_MESSAGE_PREFIX,
-            );
-            expect(ecSignature).to.deep.equal(expectedECSignature);
-        });
-        it('should return the correct ECSignature for signatureHex concatenated as R + S + V', async () => {
-            const orderHash = '0x34decbedc118904df65f379a175bb39ca18209d6ce41d5ed549d54e6e0a95004';
-            const signature =
-                '0x22109d11d79cb8bf96ed88625e1cd9558800c4073332a9a02857499883ee5ce3050aa3cc1f2c435e67e114cdce54b9527b4f50548342401bc5d2b77adbdacb021b';
-            const expectedECSignature = {
-                v: 27,
-                r: '0x22109d11d79cb8bf96ed88625e1cd9558800c4073332a9a02857499883ee5ce3',
-                s: '0x050aa3cc1f2c435e67e114cdce54b9527b4f50548342401bc5d2b77adbdacb02',
-            };
-            stubs = [
-                Sinon.stub((zeroEx as any)._web3Wrapper, 'signMessageAsync').returns(Promise.resolve(signature)),
-                Sinon.stub(ZeroEx, 'isValidSignature').returns(true),
-            ];
-
-            const ecSignature = await zeroEx.signOrderHashAsync(
-                orderHash,
-                makerAddress,
-                SHOULD_ADD_PERSONAL_MESSAGE_PREFIX,
-            );
-            expect(ecSignature).to.deep.equal(expectedECSignature);
-        });
-        it('should return the correct ECSignature for signatureHex concatenated as V + R + S', async () => {
-            const orderHash = '0xc793e33ffded933b76f2f48d9aa3339fc090399d5e7f5dec8d3660f5480793f7';
-            const signature =
-                '0x1bc80bedc6756722672753413efdd749b5adbd4fd552595f59c13427407ee9aee02dea66f25a608bbae457e020fb6decb763deb8b7192abab624997242da248960';
-            const expectedECSignature = {
-                v: 27,
-                r: '0xc80bedc6756722672753413efdd749b5adbd4fd552595f59c13427407ee9aee0',
-                s: '0x2dea66f25a608bbae457e020fb6decb763deb8b7192abab624997242da248960',
-            };
-            stubs = [
-                Sinon.stub((zeroEx as any)._web3Wrapper, 'signMessageAsync').returns(Promise.resolve(signature)),
-                Sinon.stub(ZeroEx, 'isValidSignature').returns(true),
-            ];
-
-            const ecSignature = await zeroEx.signOrderHashAsync(
-                orderHash,
-                makerAddress,
-                SHOULD_ADD_PERSONAL_MESSAGE_PREFIX,
-            );
-            expect(ecSignature).to.deep.equal(expectedECSignature);
-        });
-    });
     describe('#awaitTransactionMinedAsync', () => {
         beforeEach(async () => {
             await blockchainLifecycle.startAsync();
diff --git a/packages/0x.js/test/assert_test.ts b/packages/0x.js/test/assert_test.ts
index b08f3e23b..e69de29bb 100644
--- a/packages/0x.js/test/assert_test.ts
+++ b/packages/0x.js/test/assert_test.ts
@@ -1,43 +0,0 @@
-import { web3Factory } from '@0xproject/dev-utils';
-import * as chai from 'chai';
-import 'mocha';
-
-import { ZeroEx } from '../src';
-import { assert } from '../src/utils/assert';
-
-import { constants } from './utils/constants';
-import { provider } from './utils/web3_wrapper';
-
-const expect = chai.expect;
-
-describe('Assertion library', () => {
-    const config = {
-        networkId: constants.TESTRPC_NETWORK_ID,
-    };
-    const zeroEx = new ZeroEx(provider, config);
-    describe('#isSenderAddressHexAsync', () => {
-        it('throws when address is invalid', async () => {
-            const address = '0xdeadbeef';
-            const varName = 'address';
-            return expect(
-                assert.isSenderAddressAsync(varName, address, (zeroEx as any)._web3Wrapper),
-            ).to.be.rejectedWith(`Expected ${varName} to be of type ETHAddressHex, encountered: ${address}`);
-        });
-        it('throws when address is unavailable', async () => {
-            const validUnrelatedAddress = '0x8b0292b11a196601eddce54b665cafeca0347d42';
-            const varName = 'address';
-            return expect(
-                assert.isSenderAddressAsync(varName, validUnrelatedAddress, (zeroEx as any)._web3Wrapper),
-            ).to.be.rejectedWith(
-                `Specified ${varName} ${validUnrelatedAddress} isn't available through the supplied web3 provider`,
-            );
-        });
-        it("doesn't throw if address is available", async () => {
-            const availableAddress = (await zeroEx.getAvailableAddressesAsync())[0];
-            const varName = 'address';
-            return expect(
-                assert.isSenderAddressAsync(varName, availableAddress, (zeroEx as any)._web3Wrapper),
-            ).to.become(undefined);
-        });
-    });
-});
diff --git a/packages/0x.js/test/order_validation_test.ts b/packages/0x.js/test/order_validation_test.ts
index c894774b8..0cb95c1b6 100644
--- a/packages/0x.js/test/order_validation_test.ts
+++ b/packages/0x.js/test/order_validation_test.ts
@@ -1,4 +1,5 @@
 import { BlockchainLifecycle, devConstants } from '@0xproject/dev-utils';
+import { OrderError } from '@0xproject/order-utils';
 import { BlockParamLiteral } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
@@ -68,6 +69,40 @@ describe('OrderValidation', () => {
             );
             await zeroEx.exchange.validateOrderFillableOrThrowAsync(signedOrder);
         });
+        it('should succeed if the maker is buying ZRX and has no ZRX balance', async () => {
+            const makerFee = new BigNumber(2);
+            const takerFee = new BigNumber(2);
+            const signedOrder = await fillScenarios.createFillableSignedOrderWithFeesAsync(
+                makerTokenAddress,
+                zrxTokenAddress,
+                makerFee,
+                takerFee,
+                makerAddress,
+                takerAddress,
+                fillableAmount,
+                feeRecipient,
+            );
+            const zrxMakerBalance = await zeroEx.token.getBalanceAsync(zrxTokenAddress, makerAddress);
+            await zeroEx.token.transferAsync(zrxTokenAddress, makerAddress, takerAddress, zrxMakerBalance);
+            await zeroEx.exchange.validateOrderFillableOrThrowAsync(signedOrder);
+        });
+        it('should succeed if the maker is buying ZRX and has no ZRX balance and there is no specified taker', async () => {
+            const makerFee = new BigNumber(2);
+            const takerFee = new BigNumber(2);
+            const signedOrder = await fillScenarios.createFillableSignedOrderWithFeesAsync(
+                makerTokenAddress,
+                zrxTokenAddress,
+                makerFee,
+                takerFee,
+                makerAddress,
+                constants.NULL_ADDRESS,
+                fillableAmount,
+                feeRecipient,
+            );
+            const zrxMakerBalance = await zeroEx.token.getBalanceAsync(zrxTokenAddress, makerAddress);
+            await zeroEx.token.transferAsync(zrxTokenAddress, makerAddress, takerAddress, zrxMakerBalance);
+            await zeroEx.exchange.validateOrderFillableOrThrowAsync(signedOrder);
+        });
         it('should succeed if the order is asymmetric and fillable', async () => {
             const makerFillableAmount = fillableAmount;
             const takerFillableAmount = fillableAmount.minus(4);
@@ -135,7 +170,7 @@ describe('OrderValidation', () => {
             signedOrder.ecSignature.v = 28 - signedOrder.ecSignature.v + 27;
             return expect(
                 zeroEx.exchange.validateFillOrderThrowIfInvalidAsync(signedOrder, fillableAmount, takerAddress),
-            ).to.be.rejectedWith(ZeroExError.InvalidSignature);
+            ).to.be.rejectedWith(OrderError.InvalidSignature);
         });
         it('should throw when the order is fully filled or cancelled', async () => {
             const signedOrder = await fillScenarios.createFillableSignedOrderAsync(
@@ -469,4 +504,4 @@ describe('OrderValidation', () => {
             expect(partialTakerFee).to.be.bignumber.equal(takerPartialFee);
         });
     });
-});
+}); // tslint:disable-line:max-file-line-count
diff --git a/packages/0x.js/test/utils/fill_scenarios.ts b/packages/0x.js/test/utils/fill_scenarios.ts
index 7d0e8c501..5a82a56d2 100644
--- a/packages/0x.js/test/utils/fill_scenarios.ts
+++ b/packages/0x.js/test/utils/fill_scenarios.ts
@@ -1,10 +1,10 @@
+import { orderFactory } from '@0xproject/order-utils';
 import { BigNumber } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 
 import { SignedOrder, Token, ZeroEx } from '../../src';
 import { artifacts } from '../../src/artifacts';
 import { DummyTokenContract } from '../../src/contract_wrappers/generated/dummy_token';
-import { orderFactory } from '../utils/order_factory';
 
 import { constants } from './constants';
 
@@ -164,7 +164,7 @@ export class FillScenarios {
         ]);
 
         const signedOrder = await orderFactory.createSignedOrderAsync(
-            this._zeroEx,
+            this._zeroEx.getProvider(),
             makerAddress,
             takerAddress,
             makerFee,
diff --git a/packages/0x.js/test/utils/web3_wrapper.ts b/packages/0x.js/test/utils/web3_wrapper.ts
index b7b3f0b7f..b0ccfa546 100644
--- a/packages/0x.js/test/utils/web3_wrapper.ts
+++ b/packages/0x.js/test/utils/web3_wrapper.ts
@@ -1,9 +1,6 @@
 import { devConstants, web3Factory } from '@0xproject/dev-utils';
 import { Provider } from '@0xproject/types';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
-import * as Web3 from 'web3';
-
-import { constants } from './constants';
 
 const web3 = web3Factory.create({ shouldUseInProcessGanache: true });
 const provider: Provider = web3.currentProvider;
diff --git a/packages/abi-gen/CHANGELOG.json b/packages/abi-gen/CHANGELOG.json
index 55c03bf69..4dada9cc1 100644
--- a/packages/abi-gen/CHANGELOG.json
+++ b/packages/abi-gen/CHANGELOG.json
@@ -1,5 +1,23 @@
 [
     {
+        "timestamp": 1525477860,
+        "version": "0.2.13",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1525428773,
+        "version": "0.2.12",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1524044013,
         "version": "0.2.11",
         "changes": [
diff --git a/packages/abi-gen/CHANGELOG.md b/packages/abi-gen/CHANGELOG.md
index 6cad7a745..803414e14 100644
--- a/packages/abi-gen/CHANGELOG.md
+++ b/packages/abi-gen/CHANGELOG.md
@@ -5,11 +5,19 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.2.13 - _May 5, 2018_
+
+    * Dependencies updated
+
+## v0.2.12 - _May 4, 2018_
+
+    * Dependencies updated
+
 ## v0.2.11 - _April 18, 2018_
 
     * Dependencies updated
 
-## v0.2.10 - _April 12, 2018_
+## v0.2.10 - _April 11, 2018_
 
     * Dependencies updated
 
@@ -21,26 +29,26 @@ CHANGELOG
 
     * Dependencies updated
 
-## v0.2.5 - _March 18, 2018_
+## v0.2.5 - _March 17, 2018_
 
     * Consolidate all `console.log` calls into `logUtils` in the `@0xproject/utils` package (#452)
 
-## v0.2.4 - _March 4, 2018_
+## v0.2.4 - _March 3, 2018_
 
     * Add a `backend` parameter that allows you to specify the Ethereum library you use in your templates (`web3` or `ethers`). Ethers auto-converts small ints to numbers whereas Web3 doesn't. Defaults to `web3` (#413)
     * Add support for [tuple types](https://solidity.readthedocs.io/en/develop/abi-spec.html#handling-tuple-types) (#413)
     * Add `hasReturnValue` to context data (#413)
 
-## v0.2.1 - _February 9, 2018_
+## v0.2.1 - _February 8, 2018_
 
     * Fix publishing issue where .npmignore was not properly excluding undesired content (#389)
 
-## v0.2.0 - _February 7, 2018_
+## v0.2.0 - _February 6, 2018_
 
     * Added CLI options for explicit specifying location of partials and main template (#346)
     * Added CLI option to specify networkId, adding support for the JSON artifact format found in @0xproject/contracts (#388)
 
-## v0.1.0 - _January 11, 2018_
+## v0.1.0 - _January 10, 2018_
 
     * Fixed array typings with union types (#295)
     * Add event ABIs to context data passed to templates (#302)
diff --git a/packages/abi-gen/package.json b/packages/abi-gen/package.json
index f8e1eb112..0ee7e1979 100644
--- a/packages/abi-gen/package.json
+++ b/packages/abi-gen/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/abi-gen",
-    "version": "0.2.11",
+    "version": "0.2.13",
     "description": "Generate contract wrappers from ABI and handlebars templates",
     "main": "lib/index.js",
     "types": "lib/index.d.ts",
@@ -24,9 +24,9 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/abi-gen/README.md",
     "dependencies": {
-        "@0xproject/types": "^0.6.1",
-        "@0xproject/typescript-typings": "^0.2.0",
-        "@0xproject/utils": "^0.5.2",
+        "@0xproject/types": "^0.6.3",
+        "@0xproject/typescript-typings": "^0.3.1",
+        "@0xproject/utils": "^0.6.1",
         "chalk": "^2.3.0",
         "glob": "^7.1.2",
         "handlebars": "^4.0.11",
@@ -36,8 +36,8 @@
         "yargs": "^10.0.3"
     },
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.18",
-        "@0xproject/tslint-config": "^0.4.16",
+        "@0xproject/monorepo-scripts": "^0.1.19",
+        "@0xproject/tslint-config": "^0.4.17",
         "@types/glob": "^5.0.33",
         "@types/handlebars": "^4.0.36",
         "@types/mkdirp": "^0.5.1",
diff --git a/packages/abi-gen/src/index.ts b/packages/abi-gen/src/index.ts
index ecef33b16..7125171b9 100644
--- a/packages/abi-gen/src/index.ts
+++ b/packages/abi-gen/src/index.ts
@@ -108,8 +108,8 @@ for (const abiFileName of abiFileNames) {
         ABI = parsedContent; // ABI file
     } else if (!_.isUndefined(parsedContent.abi)) {
         ABI = parsedContent.abi; // Truffle artifact
-    } else if (!_.isUndefined(parsedContent.networks) && !_.isUndefined(parsedContent.networks[args.networkId])) {
-        ABI = parsedContent.networks[args.networkId].abi; // 0x contracts package artifact
+    } else if (!_.isUndefined(parsedContent.compilerOutput.abi)) {
+        ABI = parsedContent.compilerOutput.abi; // 0x artifact
     }
     if (_.isUndefined(ABI)) {
         logUtils.log(`${chalk.red(`ABI not found in ${abiFileName}.`)}`);
diff --git a/packages/assert/CHANGELOG.json b/packages/assert/CHANGELOG.json
index fbd663f8e..f826c7675 100644
--- a/packages/assert/CHANGELOG.json
+++ b/packages/assert/CHANGELOG.json
@@ -1,5 +1,23 @@
 [
     {
+        "timestamp": 1525477860,
+        "version": "0.2.9",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1525428773,
+        "version": "0.2.8",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1524044013,
         "version": "0.2.7",
         "changes": [
diff --git a/packages/assert/CHANGELOG.md b/packages/assert/CHANGELOG.md
index 1daa9205e..ab058b9fc 100644
--- a/packages/assert/CHANGELOG.md
+++ b/packages/assert/CHANGELOG.md
@@ -5,11 +5,19 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.2.9 - _May 5, 2018_
+
+    * Dependencies updated
+
+## v0.2.8 - _May 4, 2018_
+
+    * Dependencies updated
+
 ## v0.2.7 - _April 18, 2018_
 
     * Dependencies updated
 
-## v0.2.6 - _April 12, 2018_
+## v0.2.6 - _April 11, 2018_
 
     * Dependencies updated
 
@@ -21,20 +29,20 @@ CHANGELOG
 
     * Dependencies updated
 
-## v0.2.0 - _March 8, 2018_
+## v0.2.0 - _March 7, 2018_
 
     * Rename `isHttpUrl` to `isWebUri` (#412)
 
-## v0.1.0 - _March 4, 2018_
+## v0.1.0 - _March 3, 2018_
 
     * Remove isETHAddressHex checksum address check and assume address will be lowercased  (#373)
     * Add an optional parameter `subSchemas` to `doesConformToSchema` method (#385)
 
-## v0.0.18 - _February 9, 2017_
+## v0.0.18 - _February 8, 2017_
 
     * Fix publishing issue where .npmignore was not properly excluding undesired content (#389)
 
-## v0.0.4 - _November 14, 2017_
+## v0.0.4 - _November 13, 2017_
 
     * Re-publish Assert previously published under NPM package @0xproject/0x-assert
     * Added assertion isValidBaseUnitAmount which checks both that the value is a valid bigNumber and that it does not contain decimals.
diff --git a/packages/assert/package.json b/packages/assert/package.json
index e0e7a0d4c..e02e018ae 100644
--- a/packages/assert/package.json
+++ b/packages/assert/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/assert",
-    "version": "0.2.7",
+    "version": "0.2.9",
     "description": "Provides a standard way of performing type and schema validation across 0x projects",
     "main": "lib/src/index.js",
     "types": "lib/src/index.d.ts",
@@ -27,8 +27,8 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/assert/README.md",
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.18",
-        "@0xproject/tslint-config": "^0.4.16",
+        "@0xproject/monorepo-scripts": "^0.1.19",
+        "@0xproject/tslint-config": "^0.4.17",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^2.2.42",
         "@types/valid-url": "^1.0.2",
@@ -43,9 +43,9 @@
         "typescript": "2.7.1"
     },
     "dependencies": {
-        "@0xproject/json-schemas": "^0.7.21",
-        "@0xproject/typescript-typings": "^0.2.0",
-        "@0xproject/utils": "^0.5.2",
+        "@0xproject/json-schemas": "^0.7.23",
+        "@0xproject/typescript-typings": "^0.3.1",
+        "@0xproject/utils": "^0.6.1",
         "lodash": "^4.17.4",
         "valid-url": "^1.0.9"
     },
diff --git a/packages/base-contract/CHANGELOG.json b/packages/base-contract/CHANGELOG.json
index c5d467b7f..106c26989 100644
--- a/packages/base-contract/CHANGELOG.json
+++ b/packages/base-contract/CHANGELOG.json
@@ -1,12 +1,22 @@
 [
     {
+        "timestamp": 1525477860,
+        "version": "0.3.1",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "version": "0.3.0",
         "changes": [
             {
                 "note": "Update ethers-contracts to ethers.js",
                 "pr": 540
             }
-        ]
+        ],
+        "timestamp": 1525428773
     },
     {
         "timestamp": 1524044013,
diff --git a/packages/base-contract/CHANGELOG.md b/packages/base-contract/CHANGELOG.md
index 90f1ff5ed..b57bd5fc0 100644
--- a/packages/base-contract/CHANGELOG.md
+++ b/packages/base-contract/CHANGELOG.md
@@ -5,11 +5,19 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.3.1 - _May 5, 2018_
+
+    * Dependencies updated
+
+## v0.3.0 - _May 4, 2018_
+
+    * Update ethers-contracts to ethers.js (#540)
+
 ## v0.2.1 - _April 18, 2018_
 
     * Dependencies updated
 
-## v0.2.0 - _April 12, 2018_
+## v0.2.0 - _April 11, 2018_
 
     * Contract wrappers now accept Provider and defaults instead of Web3Wrapper (#501)
 
@@ -23,6 +31,6 @@ CHANGELOG
 
     * Dependencies updated
 
-## v0.0.2 - _March 4, 2018_
+## v0.0.2 - _March 3, 2018_
 
     * Initial release
diff --git a/packages/base-contract/package.json b/packages/base-contract/package.json
index 78dcbfe7f..90253616b 100644
--- a/packages/base-contract/package.json
+++ b/packages/base-contract/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/base-contract",
-    "version": "0.2.1",
+    "version": "0.3.1",
     "description": "0x Base TS contract",
     "main": "lib/src/index.js",
     "types": "lib/src/index.d.ts",
@@ -26,8 +26,8 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/base-contract/README.md",
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.18",
-        "@0xproject/tslint-config": "^0.4.16",
+        "@0xproject/monorepo-scripts": "^0.1.19",
+        "@0xproject/tslint-config": "^0.4.17",
         "@types/lodash": "4.14.104",
         "chai": "^4.0.1",
         "copyfiles": "^1.2.0",
@@ -38,10 +38,10 @@
         "typescript": "2.7.1"
     },
     "dependencies": {
-        "@0xproject/types": "^0.6.1",
-        "@0xproject/typescript-typings": "^0.2.0",
-        "@0xproject/utils": "^0.5.2",
-        "@0xproject/web3-wrapper": "^0.6.1",
+        "@0xproject/types": "^0.6.3",
+        "@0xproject/typescript-typings": "^0.3.1",
+        "@0xproject/utils": "^0.6.1",
+        "@0xproject/web3-wrapper": "^0.6.3",
         "ethers": "^3.0.15",
         "lodash": "^4.17.4"
     },
diff --git a/packages/connect/CHANGELOG.json b/packages/connect/CHANGELOG.json
index 2f9a1d9d4..dd172e975 100644
--- a/packages/connect/CHANGELOG.json
+++ b/packages/connect/CHANGELOG.json
@@ -1,5 +1,23 @@
 [
     {
+        "timestamp": 1525477860,
+        "version": "0.6.12",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1525428773,
+        "version": "0.6.11",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1524044013,
         "version": "0.6.10",
         "changes": [
diff --git a/packages/connect/CHANGELOG.md b/packages/connect/CHANGELOG.md
index 86b66f60c..4e118de38 100644
--- a/packages/connect/CHANGELOG.md
+++ b/packages/connect/CHANGELOG.md
@@ -5,11 +5,19 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.6.12 - _May 5, 2018_
+
+    * Dependencies updated
+
+## v0.6.11 - _May 4, 2018_
+
+    * Dependencies updated
+
 ## v0.6.10 - _April 18, 2018_
 
     * Dependencies updated
 
-## v0.6.9 - _April 12, 2018_
+## v0.6.9 - _April 11, 2018_
 
     * Dependencies updated
 
@@ -21,44 +29,44 @@ CHANGELOG
 
     * Dependencies updated
 
-## v0.6.4 - _March 18, 2018_
+## v0.6.4 - _March 17, 2018_
 
     * Consolidate `Order`, `SignedOrder`, and `ECSignature` into the `@0xproject/types` package (#456)
 
-## v0.6.2 - _February 16, 2018_
+## v0.6.2 - _February 15, 2018_
 
     * Fix JSON parse empty response (#407)
 
-## v0.6.0 - _February 16, 2018_
+## v0.6.0 - _February 15, 2018_
 
     * Add pagination options to HttpClient methods (#393)
     * Add heartbeat configuration to WebSocketOrderbookChannel constructor (#406)
 
-## v0.5.7 - _February 9, 2018_
+## v0.5.7 - _February 8, 2018_
 
     * Fix publishing issue where .npmignore was not properly excluding undesired content (#389)
 
-## v0.5.0 - _January 17, 2018_
+## v0.5.0 - _January 16, 2018_
 
     * Sanitize api endpoint url and remove trailing slashes (#318)
     * Improve error message text in HttpClient (#318)
     * Stop appending '/v0' to api endpoint url in HttpClient (#318)
 
-## v0.4.0 - _January 11, 2018_
+## v0.4.0 - _January 10, 2018_
 
     * Prevent getFeesAsync method on HttpClient from mutating input (#296)
 
-## v0.3.0 - _December 8, 2017_
+## v0.3.0 - _December 7, 2017_
 
     * Expose WebSocketOrderbookChannel and associated types to public interface (#251)
     * Remove tokenA and tokenB fields from OrdersRequest (#256)
 
-## v0.2.0 - _November 29, 2017_
+## v0.2.0 - _November 28, 2017_
 
     * Add SignedOrder and TokenTradeInfo to the public interface
     * Add ECSignature and Order to the public interface
     * Remove dependency on 0x.js
 
-## v0.1.0 - _November 22, 2017_
+## v0.1.0 - _November 21, 2017_
 
     * Provide a HttpClient class for interacting with standard relayer api compliant HTTP urls
diff --git a/packages/connect/package.json b/packages/connect/package.json
index 16e33efef..efc61178f 100644
--- a/packages/connect/package.json
+++ b/packages/connect/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/connect",
-    "version": "0.6.10",
+    "version": "0.6.12",
     "description": "A javascript library for interacting with the standard relayer api",
     "keywords": [
         "connect",
@@ -50,19 +50,19 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/connect/README.md",
     "dependencies": {
-        "@0xproject/assert": "^0.2.7",
-        "@0xproject/json-schemas": "^0.7.21",
-        "@0xproject/types": "^0.6.1",
-        "@0xproject/typescript-typings": "^0.2.0",
-        "@0xproject/utils": "^0.5.2",
+        "@0xproject/assert": "^0.2.9",
+        "@0xproject/json-schemas": "^0.7.23",
+        "@0xproject/types": "^0.6.3",
+        "@0xproject/typescript-typings": "^0.3.1",
+        "@0xproject/utils": "^0.6.1",
         "isomorphic-fetch": "^2.2.1",
         "lodash": "^4.17.4",
         "query-string": "^5.0.1",
         "websocket": "^1.0.25"
     },
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.18",
-        "@0xproject/tslint-config": "^0.4.16",
+        "@0xproject/monorepo-scripts": "^0.1.19",
+        "@0xproject/tslint-config": "^0.4.17",
         "@types/fetch-mock": "^5.12.1",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^2.2.42",
diff --git a/packages/contracts/compiler.json b/packages/contracts/compiler.json
new file mode 100644
index 000000000..493d6373d
--- /dev/null
+++ b/packages/contracts/compiler.json
@@ -0,0 +1,33 @@
+{
+    "artifactsDir": "../migrations/artifacts/1.0.0",
+    "contractsDir": "src/contracts",
+    "compilerSettings": {
+        "outputSelection": {
+            "*": {
+                "*": [
+                    "abi",
+                    "evm.bytecode.object",
+                    "evm.bytecode.sourceMap",
+                    "evm.deployedBytecode.object",
+                    "evm.deployedBytecode.sourceMap"
+                ]
+            }
+        }
+    },
+    "contracts": [
+        "Exchange",
+        "DummyToken",
+        "ZRXToken",
+        "Token",
+        "WETH9",
+        "TokenTransferProxy",
+        "MultiSigWallet",
+        "MultiSigWalletWithTimeLock",
+        "MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress",
+        "MaliciousToken",
+        "TokenRegistry",
+        "Arbitrage",
+        "EtherDelta",
+        "AccountLevels"
+    ]
+}
diff --git a/packages/contracts/package.json b/packages/contracts/package.json
index 30867476f..c47518f17 100644
--- a/packages/contracts/package.json
+++ b/packages/contracts/package.json
@@ -1,7 +1,7 @@
 {
     "private": true,
     "name": "contracts",
-    "version": "2.1.25",
+    "version": "2.1.28",
     "description": "Smart contract components of 0x protocol",
     "main": "index.js",
     "directories": {
@@ -10,13 +10,13 @@
     "scripts": {
         "build:watch": "tsc -w",
         "prebuild": "run-s clean compile copy_artifacts generate_contract_wrappers",
-        "copy_artifacts": "copyfiles -u 4 '../migrations/src/artifacts/**/*' ./lib/src/artifacts;",
+        "copy_artifacts": "copyfiles -u 4 '../migrations/artifacts/1.0.0/**/*' ./lib/src/artifacts;",
         "build": "tsc",
         "test": "run-s build run_mocha",
         "test:coverage": "SOLIDITY_COVERAGE=true run-s build run_mocha coverage:report:text coverage:report:lcov",
         "run_mocha": "mocha 'lib/test/**/*.js' --timeout 100000 --bail --exit",
         "compile:comment": "Yarn workspaces do not link binaries correctly so we need to reference them directly https://github.com/yarnpkg/yarn/issues/3846",
-        "compile": "node ../deployer/lib/src/cli.js compile --contracts ${npm_package_config_contracts} --contracts-dir src/contracts --artifacts-dir ../migrations/src/artifacts",
+        "compile": "node ../deployer/lib/src/cli.js compile",
         "clean": "shx rm -rf ./lib",
         "generate_contract_wrappers": "node ../abi-gen/lib/index.js --abis  ${npm_package_config_abis} --template ../contract_templates/contract.handlebars --partials '../contract_templates/partials/**/*.handlebars' --output src/contract_wrappers/generated --backend ethers && prettier --write 'src/contract_wrappers/generated/**.ts'",
         "lint": "tslint --project . 'migrations/**/*.ts' 'test/**/*.ts' 'util/**/*.ts' 'deploy/**/*.ts'",
@@ -26,8 +26,7 @@
         "test:circleci": "yarn test:coverage"
     },
     "config": {
-        "abis": "../migrations/src/artifacts/@(DummyToken|TokenTransferProxy|Exchange|TokenRegistry|MultiSigWallet|MultiSigWalletWithTimeLock|MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress|TokenRegistry|ZRXToken|Arbitrage|EtherDelta|AccountLevels).json",
-        "contracts": "Exchange,DummyToken,ZRXToken,Token,WETH9,TokenTransferProxy,MultiSigWallet,MultiSigWalletWithTimeLock,MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress,MaliciousToken,TokenRegistry,Arbitrage,EtherDelta,AccountLevels"
+        "abis": "../migrations/artifacts/1.0.0/@(DummyToken|TokenTransferProxy|Exchange|TokenRegistry|MultiSigWallet|MultiSigWalletWithTimeLock|MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress|TokenRegistry|ZRXToken|Arbitrage|EtherDelta|AccountLevels).json"
     },
     "repository": {
         "type": "git",
@@ -40,8 +39,8 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/contracts/README.md",
     "devDependencies": {
-        "@0xproject/dev-utils": "^0.3.6",
-        "@0xproject/tslint-config": "^0.4.16",
+        "@0xproject/dev-utils": "^0.4.1",
+        "@0xproject/tslint-config": "^0.4.17",
         "@types/lodash": "4.14.104",
         "@types/node": "^8.0.53",
         "@types/yargs": "^10.0.0",
@@ -60,12 +59,12 @@
         "yargs": "^10.0.3"
     },
     "dependencies": {
-        "0x.js": "^0.36.3",
-        "@0xproject/deployer": "^0.4.1",
-        "@0xproject/types": "^0.6.1",
-        "@0xproject/typescript-typings": "^0.2.0",
-        "@0xproject/utils": "^0.5.2",
-        "@0xproject/web3-wrapper": "^0.6.1",
+        "0x.js": "^0.37.2",
+        "@0xproject/deployer": "^0.4.3",
+        "@0xproject/types": "^0.6.3",
+        "@0xproject/typescript-typings": "^0.3.1",
+        "@0xproject/utils": "^0.6.1",
+        "@0xproject/web3-wrapper": "^0.6.3",
         "bn.js": "^4.11.8",
         "ethereumjs-abi": "^0.6.4",
         "ethereumjs-util": "^5.1.1",
diff --git a/packages/contracts/test/multi_sig_with_time_lock.ts b/packages/contracts/test/multi_sig_with_time_lock.ts
index b7604457f..5cc744713 100644
--- a/packages/contracts/test/multi_sig_with_time_lock.ts
+++ b/packages/contracts/test/multi_sig_with_time_lock.ts
@@ -17,7 +17,7 @@ import { chaiSetup } from './utils/chai_setup';
 import { deployer } from './utils/deployer';
 import { provider, web3Wrapper } from './utils/web3_wrapper';
 
-const MULTI_SIG_ABI = artifacts.MultiSigWalletWithTimeLockArtifact.networks[constants.TESTRPC_NETWORK_ID].abi;
+const MULTI_SIG_ABI = artifacts.MultiSigWalletWithTimeLockArtifact.compilerOutput.abi;
 chaiSetup.configure();
 const expect = chai.expect;
 const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
diff --git a/packages/contracts/test/multi_sig_with_time_lock_except_remove_auth_addr.ts b/packages/contracts/test/multi_sig_with_time_lock_except_remove_auth_addr.ts
index 2f928ede2..06fa30d96 100644
--- a/packages/contracts/test/multi_sig_with_time_lock_except_remove_auth_addr.ts
+++ b/packages/contracts/test/multi_sig_with_time_lock_except_remove_auth_addr.ts
@@ -17,10 +17,9 @@ import { ContractName, SubmissionContractEventArgs, TransactionDataParams } from
 import { chaiSetup } from './utils/chai_setup';
 import { deployer } from './utils/deployer';
 import { provider, web3Wrapper } from './utils/web3_wrapper';
-const PROXY_ABI = artifacts.TokenTransferProxyArtifact.networks[constants.TESTRPC_NETWORK_ID].abi;
+const PROXY_ABI = artifacts.TokenTransferProxyArtifact.compilerOutput.abi;
 const MUTISIG_WALLET_WITH_TIME_LOCK_EXCEPT_REMOVE_AUTHORIZED_ADDRESS_ABI =
-    artifacts.MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddressArtifact.networks[constants.TESTRPC_NETWORK_ID]
-        .abi;
+    artifacts.MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddressArtifact.compilerOutput.abi;
 
 chaiSetup.configure();
 const expect = chai.expect;
diff --git a/packages/contracts/util/artifacts.ts b/packages/contracts/util/artifacts.ts
index 7c375c1b7..a1d6e5060 100644
--- a/packages/contracts/util/artifacts.ts
+++ b/packages/contracts/util/artifacts.ts
@@ -1,3 +1,5 @@
+import { ContractArtifact } from '@0xproject/deployer';
+
 import * as DummyTokenArtifact from '../src/artifacts/DummyToken.json';
 import * as ExchangeArtifact from '../src/artifacts/Exchange.json';
 import * as MaliciousTokenArtifact from '../src/artifacts/MaliciousToken.json';
@@ -9,17 +11,15 @@ import * as TokenTransferProxyArtifact from '../src/artifacts/TokenTransferProxy
 import * as EtherTokenArtifact from '../src/artifacts/WETH9.json';
 import * as ZRXArtifact from '../src/artifacts/ZRXToken.json';
 
-import { Artifact } from './types';
-
 export const artifacts = {
-    ZRXArtifact: (ZRXArtifact as any) as Artifact,
-    DummyTokenArtifact: (DummyTokenArtifact as any) as Artifact,
-    TokenArtifact: (TokenArtifact as any) as Artifact,
-    ExchangeArtifact: (ExchangeArtifact as any) as Artifact,
-    EtherTokenArtifact: (EtherTokenArtifact as any) as Artifact,
-    TokenRegistryArtifact: (TokenRegistryArtifact as any) as Artifact,
-    MaliciousTokenArtifact: (MaliciousTokenArtifact as any) as Artifact,
-    TokenTransferProxyArtifact: (TokenTransferProxyArtifact as any) as Artifact,
-    MultiSigWalletWithTimeLockArtifact: (MultiSigWalletWithTimeLockArtifact as any) as Artifact,
-    MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddressArtifact: (MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddressArtifact as any) as Artifact,
+    ZRXArtifact: (ZRXArtifact as any) as ContractArtifact,
+    DummyTokenArtifact: (DummyTokenArtifact as any) as ContractArtifact,
+    TokenArtifact: (TokenArtifact as any) as ContractArtifact,
+    ExchangeArtifact: (ExchangeArtifact as any) as ContractArtifact,
+    EtherTokenArtifact: (EtherTokenArtifact as any) as ContractArtifact,
+    TokenRegistryArtifact: (TokenRegistryArtifact as any) as ContractArtifact,
+    MaliciousTokenArtifact: (MaliciousTokenArtifact as any) as ContractArtifact,
+    TokenTransferProxyArtifact: (TokenTransferProxyArtifact as any) as ContractArtifact,
+    MultiSigWalletWithTimeLockArtifact: (MultiSigWalletWithTimeLockArtifact as any) as ContractArtifact,
+    MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddressArtifact: (MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddressArtifact as any) as ContractArtifact,
 };
diff --git a/packages/contracts/util/types.ts b/packages/contracts/util/types.ts
index 321084c42..9bc412433 100644
--- a/packages/contracts/util/types.ts
+++ b/packages/contracts/util/types.ts
@@ -100,19 +100,3 @@ export enum ContractName {
     EtherDelta = 'EtherDelta',
     Arbitrage = 'Arbitrage',
 }
-
-export interface Artifact {
-    contract_name: ContractName;
-    networks: {
-        [networkId: number]: {
-            abi: ContractAbi;
-            solc_version: string;
-            keccak256: string;
-            optimizer_enabled: number;
-            unlinked_binary: string;
-            updated_at: number;
-            address: string;
-            constructor_args: string;
-        };
-    };
-}
diff --git a/packages/deployer/CHANGELOG.json b/packages/deployer/CHANGELOG.json
index 943d4a6f5..3f18ae121 100644
--- a/packages/deployer/CHANGELOG.json
+++ b/packages/deployer/CHANGELOG.json
@@ -1,12 +1,22 @@
 [
     {
+        "timestamp": 1525477860,
+        "version": "0.4.3",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "version": "0.4.2",
         "changes": [
             {
                 "note": "Add support for solidity 0.4.23",
                 "pr": 545
             }
-        ]
+        ],
+        "timestamp": 1525428773
     },
     {
         "version": "0.4.1",
diff --git a/packages/deployer/CHANGELOG.md b/packages/deployer/CHANGELOG.md
index bf0c19d28..4eb0ed453 100644
--- a/packages/deployer/CHANGELOG.md
+++ b/packages/deployer/CHANGELOG.md
@@ -5,11 +5,19 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.4.3 - _May 5, 2018_
+
+    * Dependencies updated
+
+## v0.4.2 - _May 4, 2018_
+
+    * Add support for solidity 0.4.23 (#545)
+
 ## v0.4.1 - _April 18, 2018_
 
     * Add support for solidity 0.4.22 (#531)
 
-## v0.4.0 - _April 12, 2018_
+## v0.4.0 - _April 11, 2018_
 
     * Changed the config key `web3Provider` to `provider` to be consistent with other tools (#501)
 
@@ -21,11 +29,11 @@ CHANGELOG
 
     * Create solc_bin directory if does not exist before attempting to compile (#491)
 
-## v0.3.1 - _March 18, 2018_
+## v0.3.1 - _March 17, 2018_
 
     * Add TS types for `yargs`
 
-## v0.3.0 - _March 18, 2018_
+## v0.3.0 - _March 17, 2018_
 
     * Add support for Solidity 0.4.20 and 0.4.21
     * Replace `jsonrpcPort` config with `jsonrpcUrl` (#426)
@@ -38,15 +46,15 @@ CHANGELOG
     * Consolidate all `console.log` calls into `logUtils` in the `@0xproject/utils` package (#452)
     * Add `#!/usr/bin/env node` pragma above `cli.ts` script to fix command-line error.
 
-## v0.2.0 - _March 4, 2018_
+## v0.2.0 - _March 3, 2018_
 
     * Check dependencies when determining if contracts should be recompiled (#408)
     * Improve an error message for when deployer is supplied with an incorrect number of constructor arguments (#419)
 
-## v0.1.0 - _February 16, 2018_
+## v0.1.0 - _February 15, 2018_
 
     * Add the ability to pass in specific contracts to compile in CLI (#400)
 
-## v0.0.8 - _February 9, 2018_
+## v0.0.8 - _February 8, 2018_
 
     * Fix publishing issue where .npmignore was not properly excluding undesired content (#389)
diff --git a/packages/deployer/package.json b/packages/deployer/package.json
index 2d5538c97..73bcd52f1 100644
--- a/packages/deployer/package.json
+++ b/packages/deployer/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/deployer",
-    "version": "0.4.1",
+    "version": "0.4.3",
     "description": "Smart contract deployer of 0x protocol",
     "main": "lib/src/index.js",
     "types": "lib/src/index.d.ts",
@@ -47,9 +47,9 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/deployer/README.md",
     "devDependencies": {
-        "@0xproject/dev-utils": "^0.3.6",
-        "@0xproject/monorepo-scripts": "^0.1.18",
-        "@0xproject/tslint-config": "^0.4.16",
+        "@0xproject/dev-utils": "^0.4.1",
+        "@0xproject/monorepo-scripts": "^0.1.19",
+        "@0xproject/tslint-config": "^0.4.17",
         "@types/require-from-string": "^1.2.0",
         "@types/semver": "^5.5.0",
         "chai": "^4.0.1",
@@ -68,12 +68,12 @@
         "zeppelin-solidity": "1.8.0"
     },
     "dependencies": {
-        "@0xproject/json-schemas": "^0.7.21",
-        "@0xproject/sol-resolver": "^0.0.2",
-        "@0xproject/types": "^0.6.1",
-        "@0xproject/typescript-typings": "^0.2.0",
-        "@0xproject/utils": "^0.5.2",
-        "@0xproject/web3-wrapper": "^0.6.1",
+        "@0xproject/json-schemas": "^0.7.23",
+        "@0xproject/sol-resolver": "^0.0.4",
+        "@0xproject/types": "^0.6.3",
+        "@0xproject/typescript-typings": "^0.3.1",
+        "@0xproject/utils": "^0.6.1",
+        "@0xproject/web3-wrapper": "^0.6.3",
         "@types/yargs": "^11.0.0",
         "chalk": "^2.3.0",
         "ethereumjs-util": "^5.1.1",
diff --git a/packages/deployer/src/cli.ts b/packages/deployer/src/cli.ts
index 7f1ae708a..8c89cf382 100644
--- a/packages/deployer/src/cli.ts
+++ b/packages/deployer/src/cli.ts
@@ -13,13 +13,13 @@ import { constants } from './utils/constants';
 import { consoleReporter } from './utils/error_reporter';
 import { CliOptions, CompilerOptions, DeployerOptions } from './utils/types';
 
-const DEFAULT_OPTIMIZER_ENABLED = false;
 const DEFAULT_CONTRACTS_DIR = path.resolve('src/contracts');
 const DEFAULT_ARTIFACTS_DIR = path.resolve('src/artifacts');
 const DEFAULT_NETWORK_ID = 50;
 const DEFAULT_JSONRPC_URL = 'http://localhost:8545';
 const DEFAULT_GAS_PRICE = (10 ** 9 * 2).toString();
 const DEFAULT_CONTRACTS_LIST = '*';
+const SEPARATOR = ',';
 
 /**
  * Compiles all contracts with options passed in through CLI.
@@ -28,10 +28,8 @@ const DEFAULT_CONTRACTS_LIST = '*';
 async function onCompileCommandAsync(argv: CliOptions): Promise<void> {
     const opts: CompilerOptions = {
         contractsDir: argv.contractsDir,
-        networkId: argv.networkId,
-        optimizerEnabled: argv.shouldOptimize,
         artifactsDir: argv.artifactsDir,
-        specifiedContracts: getContractsSetFromList(argv.contracts),
+        contracts: argv.contracts === DEFAULT_CONTRACTS_LIST ? DEFAULT_CONTRACTS_LIST : argv.contracts.split(SEPARATOR),
     };
     await commands.compileAsync(opts);
 }
@@ -46,10 +44,8 @@ async function onDeployCommandAsync(argv: CliOptions): Promise<void> {
     const networkId = await web3Wrapper.getNetworkIdAsync();
     const compilerOpts: CompilerOptions = {
         contractsDir: argv.contractsDir,
-        networkId,
-        optimizerEnabled: argv.shouldOptimize,
         artifactsDir: argv.artifactsDir,
-        specifiedContracts: getContractsSetFromList(argv.contracts),
+        contracts: argv.contracts === DEFAULT_CONTRACTS_LIST ? DEFAULT_CONTRACTS_LIST : argv.contracts.split(SEPARATOR),
     };
     await commands.compileAsync(compilerOpts);
 
@@ -58,91 +54,79 @@ async function onDeployCommandAsync(argv: CliOptions): Promise<void> {
         from: argv.account,
     };
     const deployerOpts: DeployerOptions = {
-        artifactsDir: argv.artifactsDir,
+        artifactsDir: argv.artifactsDir || DEFAULT_ARTIFACTS_DIR,
         jsonrpcUrl: argv.jsonrpcUrl,
         networkId,
         defaults,
     };
-    const deployerArgsString = argv.args as string;
-    const deployerArgs = deployerArgsString.split(',');
+    const deployerArgsString = argv.constructorArgs as string;
+    const deployerArgs = deployerArgsString.split(SEPARATOR);
     await commands.deployAsync(argv.contract as string, deployerArgs, deployerOpts);
 }
 /**
- * Creates a set of contracts to compile.
- * @param contracts Comma separated list of contracts to compile
- */
-function getContractsSetFromList(contracts: string): Set<string> {
-    const specifiedContracts = new Set();
-    if (contracts === '*') {
-        return new Set(['*']);
-    }
-    const contractsArray = contracts.split(',');
-    _.forEach(contractsArray, contractName => {
-        specifiedContracts.add(contractName);
-    });
-    return specifiedContracts;
-}
-/**
- * Provides extra required options for deploy command.
+ * Adds additional required options for when the user is calling the deploy command.
  * @param yargsInstance yargs instance provided in builder function callback.
  */
 function deployCommandBuilder(yargsInstance: any) {
     return yargsInstance
-        .option('contract', {
-            type: 'string',
-            description: 'name of contract to deploy, exluding .sol extension',
-        })
-        .option('args', {
-            type: 'string',
-            description: 'comma separated list of constructor args to deploy contract with',
-        })
-        .demandOption(['contract', 'args'])
-        .help().argv;
-}
-
-(() => {
-    const identityCommandBuilder = _.identity;
-    return yargs
-        .option('contracts-dir', {
-            type: 'string',
-            default: DEFAULT_CONTRACTS_DIR,
-            description: 'path of contracts directory to compile',
-        })
         .option('network-id', {
             type: 'number',
             default: DEFAULT_NETWORK_ID,
             description: 'mainnet=1, kovan=42, testrpc=50',
         })
-        .option('should-optimize', {
-            type: 'boolean',
-            default: DEFAULT_OPTIMIZER_ENABLED,
-            description: 'enable optimizer',
+        .option('contract', {
+            type: 'string',
+            description: 'name of contract to deploy, excluding .sol extension',
         })
-        .option('artifacts-dir', {
+        .option('constructor-args', {
             type: 'string',
-            default: DEFAULT_ARTIFACTS_DIR,
-            description: 'path to write contracts artifacts to',
+            description: 'comma separated list of constructor args to deploy contract with',
         })
         .option('jsonrpc-url', {
             type: 'string',
             default: DEFAULT_JSONRPC_URL,
             description: 'url of JSON RPC',
         })
+        .option('account', {
+            type: 'string',
+            description: 'account to use for deploying contracts',
+        })
         .option('gas-price', {
             type: 'string',
             default: DEFAULT_GAS_PRICE,
             description: 'gasPrice to be used for transactions',
         })
-        .option('account', {
-            type: 'string',
-            description: 'account to use for deploying contracts',
-        })
+        .demandOption(['contract', 'args', 'account'])
+        .help().argv;
+}
+
+/**
+ * Adds additional required options for when the user is calling the compile command.
+ * @param yargsInstance yargs instance provided in builder function callback.
+ */
+function compileCommandBuilder(yargsInstance: any) {
+    return yargsInstance
         .option('contracts', {
             type: 'string',
             default: DEFAULT_CONTRACTS_LIST,
             description: 'comma separated list of contracts to compile',
         })
-        .command('compile', 'compile contracts', identityCommandBuilder, consoleReporter(onCompileCommandAsync))
+        .help().argv;
+}
+
+(() => {
+    const identityCommandBuilder = _.identity;
+    return yargs
+        .option('contracts-dir', {
+            type: 'string',
+            description: 'path of contracts directory to compile',
+        })
+        .option('artifacts-dir', {
+            type: 'string',
+            description: 'path to write contracts artifacts to',
+        })
+        .demandCommand(1)
+        .command('compile', 'compile contracts', compileCommandBuilder, consoleReporter(onCompileCommandAsync))
         .command(
             'deploy',
             'deploy a single contract with provided arguments',
diff --git a/packages/deployer/src/compiler.ts b/packages/deployer/src/compiler.ts
index a3c8004ec..e81df3c0a 100644
--- a/packages/deployer/src/compiler.ts
+++ b/packages/deployer/src/compiler.ts
@@ -6,6 +6,7 @@ import {
     FSResolver,
     NameResolver,
     NPMResolver,
+    RelativeFSResolver,
     Resolver,
     URLResolver,
 } from '@0xproject/sol-resolver';
@@ -38,11 +39,30 @@ import {
     ContractNetworks,
     ContractSourceData,
     ContractSpecificSourceData,
+    ContractVersionData,
 } from './utils/types';
 import { utils } from './utils/utils';
 
+type TYPE_ALL_FILES_IDENTIFIER = '*';
 const ALL_CONTRACTS_IDENTIFIER = '*';
+const ALL_FILES_IDENTIFIER = '*';
 const SOLC_BIN_DIR = path.join(__dirname, '..', '..', 'solc_bin');
+const DEFAULT_CONTRACTS_DIR = path.resolve('contracts');
+const DEFAULT_ARTIFACTS_DIR = path.resolve('artifacts');
+// Solc compiler settings cannot be configured from the commandline.
+// If you need this configured, please create a `compiler.json` config file
+// with your desired configurations.
+const DEFAULT_COMPILER_SETTINGS: solc.CompilerSettings = {
+    optimizer: {
+        enabled: false,
+    },
+    outputSelection: {
+        [ALL_FILES_IDENTIFIER]: {
+            [ALL_CONTRACTS_IDENTIFIER]: ['abi', 'evm.bytecode.object'],
+        },
+    },
+};
+const CONFIG_FILE = 'compiler.json';
 
 /**
  * The Compiler facilitates compiling Solidity smart contracts and saves the results
@@ -52,26 +72,28 @@ export class Compiler {
     private _resolver: Resolver;
     private _nameResolver: NameResolver;
     private _contractsDir: string;
-    private _networkId: number;
-    private _optimizerEnabled: boolean;
+    private _compilerSettings: solc.CompilerSettings;
     private _artifactsDir: string;
-    private _specifiedContracts: Set<string> = new Set();
+    private _specifiedContracts: string[] | TYPE_ALL_FILES_IDENTIFIER;
     /**
      * Instantiates a new instance of the Compiler class.
-     * @param opts Options specifying directories, network, and optimization settings.
      * @return An instance of the Compiler class.
      */
     constructor(opts: CompilerOptions) {
-        this._contractsDir = opts.contractsDir;
-        this._networkId = opts.networkId;
-        this._optimizerEnabled = opts.optimizerEnabled;
-        this._artifactsDir = opts.artifactsDir;
-        this._specifiedContracts = opts.specifiedContracts;
+        // TODO: Look for config file in parent directories if not found in current directory
+        const config: CompilerOptions = fs.existsSync(CONFIG_FILE)
+            ? JSON.parse(fs.readFileSync(CONFIG_FILE).toString())
+            : {};
+        this._contractsDir = opts.contractsDir || config.contractsDir || DEFAULT_CONTRACTS_DIR;
+        this._compilerSettings = opts.compilerSettings || config.compilerSettings || DEFAULT_COMPILER_SETTINGS;
+        this._artifactsDir = opts.artifactsDir || config.artifactsDir || DEFAULT_ARTIFACTS_DIR;
+        this._specifiedContracts = opts.contracts || config.contracts || ALL_CONTRACTS_IDENTIFIER;
         this._nameResolver = new NameResolver(path.resolve(this._contractsDir));
         const resolver = new FallthroughResolver();
         resolver.appendResolver(new URLResolver());
         const packagePath = path.resolve('');
         resolver.appendResolver(new NPMResolver(packagePath));
+        resolver.appendResolver(new RelativeFSResolver(this._contractsDir));
         resolver.appendResolver(new FSResolver());
         resolver.appendResolver(this._nameResolver);
         this._resolver = resolver;
@@ -83,13 +105,13 @@ export class Compiler {
         await createDirIfDoesNotExistAsync(this._artifactsDir);
         await createDirIfDoesNotExistAsync(SOLC_BIN_DIR);
         let contractNamesToCompile: string[] = [];
-        if (this._specifiedContracts.has(ALL_CONTRACTS_IDENTIFIER)) {
+        if (this._specifiedContracts === ALL_CONTRACTS_IDENTIFIER) {
             const allContracts = this._nameResolver.getAll();
             contractNamesToCompile = _.map(allContracts, contractSource =>
                 path.basename(contractSource.path, constants.SOLIDITY_FILE_EXTENSION),
             );
         } else {
-            contractNamesToCompile = Array.from(this._specifiedContracts.values());
+            contractNamesToCompile = this._specifiedContracts;
         }
         for (const contractNameToCompile of contractNamesToCompile) {
             await this._compileContractAsync(contractNameToCompile);
@@ -101,17 +123,18 @@ export class Compiler {
      */
     private async _compileContractAsync(contractName: string): Promise<void> {
         const contractSource = this._resolver.resolve(contractName);
+        const absoluteContractPath = path.join(this._contractsDir, contractSource.path);
         const currentArtifactIfExists = await getContractArtifactIfExistsAsync(this._artifactsDir, contractName);
-        const sourceTreeHashHex = `0x${this._getSourceTreeHash(contractSource.path).toString('hex')}`;
-
+        const sourceTreeHashHex = `0x${this._getSourceTreeHash(absoluteContractPath).toString('hex')}`;
         let shouldCompile = false;
         if (_.isUndefined(currentArtifactIfExists)) {
             shouldCompile = true;
         } else {
             const currentArtifact = currentArtifactIfExists as ContractArtifact;
-            shouldCompile =
-                currentArtifact.networks[this._networkId].optimizer_enabled !== this._optimizerEnabled ||
-                currentArtifact.networks[this._networkId].source_tree_hash !== sourceTreeHashHex;
+            const isUserOnLatestVersion = currentArtifact.schemaVersion === constants.LATEST_ARTIFACT_VERSION;
+            const didCompilerSettingsChange = !_.isEqual(currentArtifact.compiler.settings, this._compilerSettings);
+            const didSourceChange = currentArtifact.sourceTreeHashHex !== sourceTreeHashHex;
+            shouldCompile = isUserOnLatestVersion || didCompilerSettingsChange || didSourceChange;
         }
         if (!shouldCompile) {
             return;
@@ -139,30 +162,14 @@ export class Compiler {
 
         logUtils.log(`Compiling ${contractName} with Solidity v${solcVersion}...`);
         const source = contractSource.source;
-        const absoluteFilePath = contractSource.path;
         const standardInput: solc.StandardInput = {
             language: 'Solidity',
             sources: {
-                [absoluteFilePath]: {
-                    urls: [`file://${absoluteFilePath}`],
-                },
-            },
-            settings: {
-                optimizer: {
-                    enabled: this._optimizerEnabled,
-                },
-                outputSelection: {
-                    '*': {
-                        '*': [
-                            'abi',
-                            'evm.bytecode.object',
-                            'evm.bytecode.sourceMap',
-                            'evm.deployedBytecode.object',
-                            'evm.deployedBytecode.sourceMap',
-                        ],
-                    },
+                [contractSource.path]: {
+                    content: contractSource.source,
                 },
             },
+            settings: this._compilerSettings,
         };
         const compiled: solc.StandardOutput = JSON.parse(
             solcInstance.compileStandardWrapper(JSON.stringify(standardInput), importPath => {
@@ -188,34 +195,28 @@ export class Compiler {
                 });
             }
         }
-        const compiledData = compiled.contracts[absoluteFilePath][contractName];
+        const compiledData = compiled.contracts[contractSource.path][contractName];
         if (_.isUndefined(compiledData)) {
             throw new Error(
-                `Contract ${contractName} not found in ${absoluteFilePath}. Please make sure your contract has the same name as it's file name`,
+                `Contract ${contractName} not found in ${
+                    contractSource.path
+                }. Please make sure your contract has the same name as it's file name`,
             );
         }
-        const abi: ContractAbi = compiledData.abi;
-        const bytecode = `0x${compiledData.evm.bytecode.object}`;
-        const runtimeBytecode = `0x${compiledData.evm.deployedBytecode.object}`;
-        const sourceMap = compiledData.evm.bytecode.sourceMap;
-        const sourceMapRuntime = compiledData.evm.deployedBytecode.sourceMap;
-        const unresolvedSourcePaths = _.keys(compiled.sources);
-        const sources = _.map(
-            unresolvedSourcePaths,
-            unresolvedSourcePath => this._resolver.resolve(unresolvedSourcePath).path,
+        const sourceCodes = _.mapValues(
+            compiled.sources,
+            (_1, sourceFilePath) => this._resolver.resolve(sourceFilePath).source,
         );
-        const updated_at = Date.now();
-        const contractNetworkData: ContractNetworkData = {
-            solc_version: solcVersion,
-            source_tree_hash: sourceTreeHashHex,
-            optimizer_enabled: this._optimizerEnabled,
-            abi,
-            bytecode,
-            runtime_bytecode: runtimeBytecode,
-            updated_at,
-            source_map: sourceMap,
-            source_map_runtime: sourceMapRuntime,
-            sources,
+        const contractVersion: ContractVersionData = {
+            compilerOutput: compiledData,
+            sources: compiled.sources,
+            sourceCodes,
+            sourceTreeHashHex,
+            compiler: {
+                name: 'solc',
+                version: solcVersion,
+                settings: this._compilerSettings,
+            },
         };
 
         let newArtifact: ContractArtifact;
@@ -223,17 +224,14 @@ export class Compiler {
             const currentArtifact = currentArtifactIfExists as ContractArtifact;
             newArtifact = {
                 ...currentArtifact,
-                networks: {
-                    ...currentArtifact.networks,
-                    [this._networkId]: contractNetworkData,
-                },
+                ...contractVersion,
             };
         } else {
             newArtifact = {
-                contract_name: contractName,
-                networks: {
-                    [this._networkId]: contractNetworkData,
-                },
+                schemaVersion: constants.LATEST_ARTIFACT_VERSION,
+                contractName,
+                ...contractVersion,
+                networks: {},
             };
         }
 
diff --git a/packages/deployer/src/deployer.ts b/packages/deployer/src/deployer.ts
index ad05417b1..c8c3a9a06 100644
--- a/packages/deployer/src/deployer.ts
+++ b/packages/deployer/src/deployer.ts
@@ -2,6 +2,7 @@ import { AbiType, ConstructorAbi, ContractAbi, Provider, TxData } from '@0xproje
 import { logUtils } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';
+import * as solc from 'solc';
 import * as Web3 from 'web3';
 
 import { Contract } from './utils/contract';
@@ -28,7 +29,20 @@ export class Deployer {
     private _artifactsDir: string;
     private _networkId: number;
     private _defaults: Partial<TxData>;
-
+    /**
+     * Gets data for current version stored in artifact.
+     * @param contractArtifact The contract artifact.
+     * @return Version specific contract data.
+     */
+    private static _getContractCompilerOutputFromArtifactIfExists(
+        contractArtifact: ContractArtifact,
+    ): solc.StandardContractOutput {
+        const compilerOutputIfExists = contractArtifact.compilerOutput;
+        if (_.isUndefined(compilerOutputIfExists)) {
+            throw new Error(`Compiler output not found in artifact for contract: ${contractArtifact.contractName}`);
+        }
+        return compilerOutputIfExists;
+    }
     /**
      * Instantiate a new instance of the Deployer class.
      * @param opts Deployer options, including either an RPC url or Provider instance.
@@ -58,10 +72,8 @@ export class Deployer {
      */
     public async deployAsync(contractName: string, args: any[] = []): Promise<Web3.ContractInstance> {
         const contractArtifactIfExists: ContractArtifact = this._loadContractArtifactIfExists(contractName);
-        const contractNetworkDataIfExists: ContractNetworkData = this._getContractNetworkDataFromArtifactIfExists(
-            contractArtifactIfExists,
-        );
-        const data = contractNetworkDataIfExists.bytecode;
+        const compilerOutput = Deployer._getContractCompilerOutputFromArtifactIfExists(contractArtifactIfExists);
+        const data = compilerOutput.evm.bytecode.object;
         const from = await this._getFromAddressAsync();
         const gas = await this._getAllowableGasEstimateAsync(data);
         const txData = {
@@ -70,7 +82,10 @@ export class Deployer {
             data,
             gas,
         };
-        const abi = contractNetworkDataIfExists.abi;
+        if (_.isUndefined(compilerOutput.abi)) {
+            throw new Error(`ABI not found in ${contractName} artifacts`);
+        }
+        const abi = compilerOutput.abi;
         const constructorAbi = _.find(abi, { type: AbiType.Constructor }) as ConstructorAbi;
         const constructorArgs = _.isUndefined(constructorAbi) ? [] : constructorAbi.inputs;
         if (constructorArgs.length !== args.length) {
@@ -138,15 +153,16 @@ export class Deployer {
         args: any[],
     ): Promise<void> {
         const contractArtifactIfExists: ContractArtifact = this._loadContractArtifactIfExists(contractName);
-        const contractNetworkDataIfExists: ContractNetworkData = this._getContractNetworkDataFromArtifactIfExists(
-            contractArtifactIfExists,
-        );
-        const abi = contractNetworkDataIfExists.abi;
+        const compilerOutput = Deployer._getContractCompilerOutputFromArtifactIfExists(contractArtifactIfExists);
+        if (_.isUndefined(compilerOutput.abi)) {
+            throw new Error(`ABI not found in ${contractName} artifacts`);
+        }
+        const abi = compilerOutput.abi;
         const encodedConstructorArgs = encoder.encodeConstructorArgsFromAbi(args, abi);
-        const newContractData = {
-            ...contractNetworkDataIfExists,
+        const newContractData: ContractNetworkData = {
             address: contractAddress,
-            constructor_args: encodedConstructorArgs,
+            links: {},
+            constructorArgs: encodedConstructorArgs,
         };
         const newArtifact = {
             ...contractArtifactIfExists,
@@ -174,18 +190,6 @@ export class Deployer {
         }
     }
     /**
-     * Gets data for current networkId stored in artifact.
-     * @param contractArtifact The contract artifact.
-     * @return Network specific contract data.
-     */
-    private _getContractNetworkDataFromArtifactIfExists(contractArtifact: ContractArtifact): ContractNetworkData {
-        const contractNetworkDataIfExists = contractArtifact.networks[this._networkId];
-        if (_.isUndefined(contractNetworkDataIfExists)) {
-            throw new Error(`Data not found in artifact for contract: ${contractArtifact.contract_name}`);
-        }
-        return contractNetworkDataIfExists;
-    }
-    /**
      * Gets the address to use for sending a transaction.
      * @return The default from address. If not specified, returns the first address accessible by web3.
      */
diff --git a/packages/deployer/src/index.ts b/packages/deployer/src/index.ts
index 186d644ef..31a75677b 100644
--- a/packages/deployer/src/index.ts
+++ b/packages/deployer/src/index.ts
@@ -1,2 +1,3 @@
 export { Deployer } from './deployer';
 export { Compiler } from './compiler';
+export { ContractArtifact, ContractNetworks } from './utils/types';
diff --git a/packages/deployer/src/utils/constants.ts b/packages/deployer/src/utils/constants.ts
index 6f9dfb994..df2ddb3b2 100644
--- a/packages/deployer/src/utils/constants.ts
+++ b/packages/deployer/src/utils/constants.ts
@@ -1,4 +1,5 @@
 export const constants = {
     SOLIDITY_FILE_EXTENSION: '.sol',
     BASE_COMPILER_URL: 'https://ethereum.github.io/solc-bin/bin/',
+    LATEST_ARTIFACT_VERSION: '2.0.0',
 };
diff --git a/packages/deployer/src/utils/types.ts b/packages/deployer/src/utils/types.ts
index a20d0f627..19c27df67 100644
--- a/packages/deployer/src/utils/types.ts
+++ b/packages/deployer/src/utils/types.ts
@@ -1,4 +1,5 @@
 import { ContractAbi, Provider, TxData } from '@0xproject/types';
+import * as solc from 'solc';
 import * as Web3 from 'web3';
 import * as yargs from 'yargs';
 
@@ -9,28 +10,40 @@ export enum AbiType {
     Fallback = 'fallback',
 }
 
-export interface ContractArtifact {
-    contract_name: string;
+export interface ContractArtifact extends ContractVersionData {
+    schemaVersion: string;
+    contractName: string;
     networks: ContractNetworks;
 }
 
+export interface ContractVersionData {
+    compiler: {
+        name: 'solc';
+        version: string;
+        settings: solc.CompilerSettings;
+    };
+    sources: {
+        [sourceName: string]: {
+            id: number;
+        };
+    };
+    sourceCodes: {
+        [sourceName: string]: string;
+    };
+    sourceTreeHashHex: string;
+    compilerOutput: solc.StandardContractOutput;
+}
+
 export interface ContractNetworks {
-    [key: number]: ContractNetworkData;
+    [networkId: number]: ContractNetworkData;
 }
 
 export interface ContractNetworkData {
-    solc_version: string;
-    optimizer_enabled: boolean;
-    source_tree_hash: string;
-    abi: ContractAbi;
-    bytecode: string;
-    runtime_bytecode: string;
-    address?: string;
-    constructor_args?: string;
-    updated_at: number;
-    source_map: string;
-    source_map_runtime: string;
-    sources: string[];
+    address: string;
+    links: {
+        [linkName: string]: string;
+    };
+    constructorArgs: string;
 }
 
 export interface SolcErrors {
@@ -42,7 +55,6 @@ export interface CliOptions extends yargs.Arguments {
     contractsDir: string;
     jsonrpcUrl: string;
     networkId: number;
-    shouldOptimize: boolean;
     gasPrice: string;
     account?: string;
     contract?: string;
@@ -50,11 +62,10 @@ export interface CliOptions extends yargs.Arguments {
 }
 
 export interface CompilerOptions {
-    contractsDir: string;
-    networkId: number;
-    optimizerEnabled: boolean;
-    artifactsDir: string;
-    specifiedContracts: Set<string>;
+    contractsDir?: string;
+    artifactsDir?: string;
+    compilerSettings?: solc.CompilerSettings;
+    contracts?: string[] | '*';
 }
 
 export interface BaseDeployerOptions {
diff --git a/packages/deployer/test/compiler_test.ts b/packages/deployer/test/compiler_test.ts
index b03ae7935..9baf433d4 100644
--- a/packages/deployer/test/compiler_test.ts
+++ b/packages/deployer/test/compiler_test.ts
@@ -18,9 +18,7 @@ describe('#Compiler', function() {
     const compilerOpts: CompilerOptions = {
         artifactsDir,
         contractsDir,
-        networkId: constants.networkId,
-        optimizerEnabled: constants.optimizerEnabled,
-        specifiedContracts: new Set(constants.specifiedContracts),
+        contracts: constants.contracts,
     };
     const compiler = new Compiler(compilerOpts);
     beforeEach((done: DoneCallback) => {
@@ -38,9 +36,8 @@ describe('#Compiler', function() {
         };
         const exchangeArtifactString = await fsWrapper.readFileAsync(exchangeArtifactPath, opts);
         const exchangeArtifact: ContractArtifact = JSON.parse(exchangeArtifactString);
-        const exchangeContractData: ContractNetworkData = exchangeArtifact.networks[constants.networkId];
         // The last 43 bytes of the binaries are metadata which may not be equivalent
-        const unlinkedBinaryWithoutMetadata = exchangeContractData.bytecode.slice(0, -86);
+        const unlinkedBinaryWithoutMetadata = exchangeArtifact.compilerOutput.evm.bytecode.object.slice(0, -86);
         const exchangeBinaryWithoutMetadata = exchange_binary.slice(0, -86);
         expect(unlinkedBinaryWithoutMetadata).to.equal(exchangeBinaryWithoutMetadata);
     });
diff --git a/packages/deployer/test/deployer_test.ts b/packages/deployer/test/deployer_test.ts
index 238624220..a8abc6454 100644
--- a/packages/deployer/test/deployer_test.ts
+++ b/packages/deployer/test/deployer_test.ts
@@ -19,9 +19,7 @@ describe('#Deployer', () => {
     const compilerOpts: CompilerOptions = {
         artifactsDir,
         contractsDir,
-        networkId: constants.networkId,
-        optimizerEnabled: constants.optimizerEnabled,
-        specifiedContracts: new Set(constants.specifiedContracts),
+        contracts: constants.contracts,
     };
     const compiler = new Compiler(compilerOpts);
     const deployerOpts = {
@@ -55,8 +53,7 @@ describe('#Deployer', () => {
             const exchangeContractData: ContractNetworkData = exchangeArtifact.networks[constants.networkId];
             const exchangeAddress = exchangeContractInstance.address;
             expect(exchangeAddress).to.not.equal(undefined);
-            expect(exchangeContractData.address).to.equal(undefined);
-            expect(exchangeContractData.constructor_args).to.equal(undefined);
+            expect(exchangeContractData).to.equal(undefined);
         });
     });
     describe('#deployAndSaveAsync', () => {
@@ -71,7 +68,7 @@ describe('#Deployer', () => {
             const exchangeContractData: ContractNetworkData = exchangeArtifact.networks[constants.networkId];
             const exchangeAddress = exchangeContractInstance.address;
             expect(exchangeAddress).to.be.equal(exchangeContractData.address);
-            expect(constructor_args).to.be.equal(exchangeContractData.constructor_args);
+            expect(constructor_args).to.be.equal(exchangeContractData.constructorArgs);
         });
     });
 });
diff --git a/packages/deployer/test/fixtures/exchange_bin.ts b/packages/deployer/test/fixtures/exchange_bin.ts
index 9fbf9bf95..914e76bf5 100644
--- a/packages/deployer/test/fixtures/exchange_bin.ts
+++ b/packages/deployer/test/fixtures/exchange_bin.ts
@@ -1,4 +1,4 @@
 export const constructor_args =
     '0x000000000000000000000000e41d2489571d322189246dafa5ebde1f4699f4980000000000000000000000008da0d80f5007ef1e431dd2127178d224e32c2ef4';
 export const exchange_binary =
-    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diff --git a/packages/deployer/test/util/constants.ts b/packages/deployer/test/util/constants.ts
index b93081a80..88d6db550 100644
--- a/packages/deployer/test/util/constants.ts
+++ b/packages/deployer/test/util/constants.ts
@@ -7,5 +7,5 @@ export const constants = {
     timeoutMs: 30000,
     zrxTokenAddress: '0xe41d2489571d322189246dafa5ebde1f4699f498',
     tokenTransferProxyAddress: '0x8da0d80f5007ef1e431dd2127178d224e32c2ef4',
-    specifiedContracts: '*',
+    contracts: '*' as '*',
 };
diff --git a/packages/dev-utils/CHANGELOG.json b/packages/dev-utils/CHANGELOG.json
index f245e6183..9da323f48 100644
--- a/packages/dev-utils/CHANGELOG.json
+++ b/packages/dev-utils/CHANGELOG.json
@@ -1,5 +1,24 @@
 [
     {
+        "timestamp": 1525477860,
+        "version": "0.4.1",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "version": "0.4.0",
+        "changes": [
+            {
+                "note": "Update web3 provider engine to 14.0.4",
+                "pr": 555
+            }
+        ],
+        "timestamp": 1525428773
+    },
+    {
         "version": "0.3.6",
         "changes": [
             {
diff --git a/packages/dev-utils/CHANGELOG.md b/packages/dev-utils/CHANGELOG.md
index de9db5125..ab824c898 100644
--- a/packages/dev-utils/CHANGELOG.md
+++ b/packages/dev-utils/CHANGELOG.md
@@ -5,11 +5,19 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.4.1 - _May 5, 2018_
+
+    * Dependencies updated
+
+## v0.4.0 - _May 4, 2018_
+
+    * Update web3 provider engine to 14.0.4 (#555)
+
 ## v0.3.6 - _April 18, 2018_
 
     * Allow an rpcURL to be set in Web3Config (for testnet RPC endpoints) (#524)
 
-## v0.3.5 - _April 12, 2018_
+## v0.3.5 - _April 11, 2018_
 
     * Dependencies updated
 
@@ -21,25 +29,25 @@ CHANGELOG
 
     * Dependencies updated
 
-## v0.3.1 - _March 18, 2018_
+## v0.3.1 - _March 17, 2018_
 
     * Reduce npm package size by adding an `.npmignore` file.
     * Move `@0xproject/web3-wrapper` to dependencies from devDependencies.
 
-## v0.3.0 - _March 18, 2018_
+## v0.3.0 - _March 17, 2018_
 
     * Add coverage subprovider if SOLIDITY_COVERAGE env variable is true (#426)
     * Refactor `BlockchainLifecycle` to work with in-process ganache (#426)
     * Remove `RPC` class and move it's logic to `Web3Wrapper` (#426)
 
-## v0.2.0 - _February 16, 2018_
+## v0.2.0 - _February 15, 2018_
 
     * Remove subproviders (#392)
 
-## v0.0.12 - _February 9, 2018_
+## v0.0.12 - _February 8, 2018_
 
     * Fix publishing issue where .npmignore was not properly excluding undesired content (#389)
 
-## v0.0.11 - _February 7, 2018_
+## v0.0.11 - _February 6, 2018_
 
     * Updated `types-ethereumjs-util` dev dependency (#352)
diff --git a/packages/dev-utils/package.json b/packages/dev-utils/package.json
index 5b855fb33..0422794ff 100644
--- a/packages/dev-utils/package.json
+++ b/packages/dev-utils/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/dev-utils",
-    "version": "0.3.6",
+    "version": "0.4.1",
     "description": "0x dev TS utils",
     "main": "lib/src/index.js",
     "types": "lib/src/index.d.ts",
@@ -26,8 +26,8 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/dev-utils/README.md",
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.18",
-        "@0xproject/tslint-config": "^0.4.16",
+        "@0xproject/monorepo-scripts": "^0.1.19",
+        "@0xproject/tslint-config": "^0.4.17",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^2.2.42",
         "chai": "^4.0.1",
@@ -40,14 +40,14 @@
         "typescript": "2.7.1"
     },
     "dependencies": {
-        "@0xproject/sol-cov": "^0.0.8",
-        "@0xproject/subproviders": "^0.9.0",
-        "@0xproject/types": "^0.6.1",
-        "@0xproject/typescript-typings": "^0.2.0",
-        "@0xproject/web3-wrapper": "^0.6.1",
+        "@0xproject/sol-cov": "^0.0.10",
+        "@0xproject/subproviders": "^0.10.1",
+        "@0xproject/types": "^0.6.3",
+        "@0xproject/typescript-typings": "^0.3.1",
+        "@0xproject/web3-wrapper": "^0.6.3",
         "lodash": "^4.17.4",
         "web3": "^0.20.0",
-        "web3-provider-engine": "^13.0.1"
+        "web3-provider-engine": "^14.0.4"
     },
     "publishConfig": {
         "access": "public"
diff --git a/packages/dev-utils/src/coverage.ts b/packages/dev-utils/src/coverage.ts
index 67c87ec30..743573874 100644
--- a/packages/dev-utils/src/coverage.ts
+++ b/packages/dev-utils/src/coverage.ts
@@ -13,7 +13,7 @@ export const coverage = {
         return coverageSubprovider;
     },
     _getCoverageSubprovider(): CoverageSubprovider {
-        const artifactsPath = '../migrations/src/artifacts';
+        const artifactsPath = '../migrations/artifacts/1.0.0';
         const contractsPath = 'src/contracts';
         const networkId = 50;
         const defaultFromAddress = constants.TESTRPC_FIRST_ADDRESS;
diff --git a/packages/json-schemas/CHANGELOG.json b/packages/json-schemas/CHANGELOG.json
index 288413e66..4114cdcf4 100644
--- a/packages/json-schemas/CHANGELOG.json
+++ b/packages/json-schemas/CHANGELOG.json
@@ -1,5 +1,23 @@
 [
     {
+        "timestamp": 1525477860,
+        "version": "0.7.23",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1525428773,
+        "version": "0.7.22",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1524044013,
         "version": "0.7.21",
         "changes": [
diff --git a/packages/json-schemas/CHANGELOG.md b/packages/json-schemas/CHANGELOG.md
index ead00d716..257d14fdf 100644
--- a/packages/json-schemas/CHANGELOG.md
+++ b/packages/json-schemas/CHANGELOG.md
@@ -5,11 +5,19 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.7.23 - _May 5, 2018_
+
+    * Dependencies updated
+
+## v0.7.22 - _May 4, 2018_
+
+    * Dependencies updated
+
 ## v0.7.21 - _April 18, 2018_
 
     * Dependencies updated
 
-## v0.7.20 - _April 12, 2018_
+## v0.7.20 - _April 11, 2018_
 
     * Dependencies updated
 
@@ -21,14 +29,14 @@ CHANGELOG
 
     * Dependencies updated
 
-## v0.7.13 - _February 9, 2018_
+## v0.7.13 - _February 8, 2018_
 
     *   Fix publishing issue where .npmignore was not properly excluding undesired content (#389)
 
-## v0.7.0 - _December 20, 2017_
+## v0.7.0 - _December 19, 2017_
 
     * Rename `subscriptionOptsSchema` to `blockRangeSchema` (#272)
 
-## v0.6.7 - _November 14, 2017_
+## v0.6.7 - _November 13, 2017_
 
     * Re-publish JSON-schema previously published under NPM package 0x-json-schemas
diff --git a/packages/json-schemas/package.json b/packages/json-schemas/package.json
index daf91c65f..f67f653f0 100644
--- a/packages/json-schemas/package.json
+++ b/packages/json-schemas/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/json-schemas",
-    "version": "0.7.21",
+    "version": "0.7.23",
     "description": "0x-related json schemas",
     "main": "lib/src/index.js",
     "types": "lib/src/index.d.ts",
@@ -42,15 +42,15 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/json-schemas/README.md",
     "dependencies": {
-        "@0xproject/typescript-typings": "^0.2.0",
+        "@0xproject/typescript-typings": "^0.3.1",
         "@types/node": "^8.0.53",
         "jsonschema": "^1.2.0",
         "lodash.values": "^4.3.0"
     },
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.18",
-        "@0xproject/tslint-config": "^0.4.16",
-        "@0xproject/utils": "^0.5.2",
+        "@0xproject/monorepo-scripts": "^0.1.19",
+        "@0xproject/tslint-config": "^0.4.17",
+        "@0xproject/utils": "^0.6.1",
         "@types/lodash.foreach": "^4.5.3",
         "@types/lodash.values": "^4.3.3",
         "@types/mocha": "^2.2.42",
diff --git a/packages/metacoin/compiler.json b/packages/metacoin/compiler.json
new file mode 100644
index 000000000..f5817e0c8
--- /dev/null
+++ b/packages/metacoin/compiler.json
@@ -0,0 +1,15 @@
+{
+    "compilerSettings": {
+        "outputSelection": {
+            "*": {
+                "*": [
+                    "abi",
+                    "evm.bytecode.object",
+                    "evm.bytecode.sourceMap",
+                    "evm.deployedBytecode.object",
+                    "evm.deployedBytecode.sourceMap"
+                ]
+            }
+        }
+    }
+}
diff --git a/packages/metacoin/package.json b/packages/metacoin/package.json
index e944d725b..17aad0aaf 100644
--- a/packages/metacoin/package.json
+++ b/packages/metacoin/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/metacoin",
-    "version": "0.0.4",
+    "version": "0.0.6",
     "private": true,
     "description": "Example solidity project using 0x dev tools",
     "scripts": {
@@ -12,32 +12,32 @@
         "build": "tsc",
         "test": "run-s build run_mocha",
         "test:coverage": "SOLIDITY_COVERAGE=true run-s build run_mocha coverage:report:text coverage:report:lcov",
-        "run_mocha": "mocha lib/test/**/*.js --bail --exit",
+        "run_mocha": "mocha lib/test/**/*_test.js lib/test/global_hooks.js --bail --exit",
         "generate_contract_wrappers": "node ../abi-gen/lib/index.js --abis 'artifacts/Metacoin.json' --template ../contract_templates/contract.handlebars --partials '../contract_templates/partials/**/*.handlebars' --output src/contract_wrappers --backend ethers && prettier --write 'src/contract_wrappers/**.ts'",
         "coverage:report:text": "istanbul report text",
         "coverage:report:html": "istanbul report html && open coverage/index.html",
         "coverage:report:lcov": "istanbul report lcov",
         "test:circleci": "yarn test:coverage",
-        "compile": "node ../deployer/lib/src/cli.js compile --contracts Metacoin --contracts-dir contracts --artifacts-dir artifacts"
+        "compile": "node ../deployer/lib/src/cli.js compile"
     },
     "author": "",
     "license": "Apache-2.0",
     "dependencies": {
-        "@0xproject/abi-gen": "^0.2.11",
-        "@0xproject/base-contract": "^0.2.1",
-        "@0xproject/deployer": "^0.4.1",
-        "@0xproject/sol-cov": "^0.0.8",
-        "@0xproject/subproviders": "^0.9.0",
-        "@0xproject/tslint-config": "^0.4.16",
-        "@0xproject/types": "^0.6.1",
-        "@0xproject/utils": "^0.5.2",
-        "@0xproject/web3-wrapper": "^0.6.1",
+        "@0xproject/abi-gen": "^0.2.13",
+        "@0xproject/base-contract": "^0.3.1",
+        "@0xproject/deployer": "^0.4.3",
+        "@0xproject/sol-cov": "^0.0.10",
+        "@0xproject/subproviders": "^0.10.1",
+        "@0xproject/tslint-config": "^0.4.17",
+        "@0xproject/types": "^0.6.3",
+        "@0xproject/utils": "^0.6.1",
+        "@0xproject/web3-wrapper": "^0.6.3",
         "ethers": "^3.0.15",
         "lodash": "^4.17.4",
-        "web3-provider-engine": "^13.0.1"
+        "web3-provider-engine": "^14.0.4"
     },
     "devDependencies": {
-        "@0xproject/dev-utils": "^0.3.6",
+        "@0xproject/dev-utils": "^0.4.1",
         "chai": "^4.0.1",
         "chai-as-promised": "^7.1.0",
         "chai-bignumber": "^2.0.1",
diff --git a/packages/migrations/CHANGELOG.json b/packages/migrations/CHANGELOG.json
index f668141ee..142468dad 100644
--- a/packages/migrations/CHANGELOG.json
+++ b/packages/migrations/CHANGELOG.json
@@ -1,5 +1,23 @@
 [
     {
+        "timestamp": 1525477860,
+        "version": "0.0.5",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1525428773,
+        "version": "0.0.4",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1524073495,
         "version": "0.0.3",
         "changes": [
diff --git a/packages/migrations/CHANGELOG.md b/packages/migrations/CHANGELOG.md
index 538deb4a5..99da91a35 100644
--- a/packages/migrations/CHANGELOG.md
+++ b/packages/migrations/CHANGELOG.md
@@ -5,6 +5,14 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.0.5 - _May 5, 2018_
+
+    * Dependencies updated
+
+## v0.0.4 - _May 4, 2018_
+
+    * Dependencies updated
+
 ## v0.0.3 - _April 18, 2018_
 
     * Dependencies updated
diff --git a/packages/migrations/artifacts/1.0.0/.gitkeep b/packages/migrations/artifacts/1.0.0/.gitkeep
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/packages/migrations/artifacts/1.0.0/.gitkeep
diff --git a/packages/migrations/package.json b/packages/migrations/package.json
index 4a0093603..8c85aa337 100644
--- a/packages/migrations/package.json
+++ b/packages/migrations/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/migrations",
-    "version": "0.0.3",
+    "version": "0.0.5",
     "description": "0x smart contract migrations",
     "main": "lib/index.js",
     "types": "lib/index.d.ts",
@@ -19,17 +19,17 @@
     },
     "license": "Apache-2.0",
     "devDependencies": {
-        "@0xproject/dev-utils": "^0.3.6",
-        "@0xproject/tslint-config": "^0.4.16",
+        "@0xproject/dev-utils": "^0.4.1",
+        "@0xproject/tslint-config": "^0.4.17",
         "npm-run-all": "^4.1.2",
         "shx": "^0.2.2",
         "tslint": "5.8.0",
         "typescript": "2.7.1"
     },
     "dependencies": {
-        "@0xproject/deployer": "^0.4.1",
-        "@0xproject/utils": "^0.5.2",
-        "@0xproject/web3-wrapper": "^0.6.1",
+        "@0xproject/deployer": "^0.4.3",
+        "@0xproject/utils": "^0.6.1",
+        "@0xproject/web3-wrapper": "^0.6.3",
         "lodash": "^4.17.4"
     },
     "publishConfig": {
diff --git a/packages/monorepo-scripts/CHANGELOG.json b/packages/monorepo-scripts/CHANGELOG.json
index b67167393..10fe8acb1 100644
--- a/packages/monorepo-scripts/CHANGELOG.json
+++ b/packages/monorepo-scripts/CHANGELOG.json
@@ -1,5 +1,14 @@
 [
     {
+        "timestamp": 1525428773,
+        "version": "0.1.19",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1524044013,
         "version": "0.1.18",
         "changes": [
diff --git a/packages/monorepo-scripts/CHANGELOG.md b/packages/monorepo-scripts/CHANGELOG.md
index c24aacaf6..df70792b8 100644
--- a/packages/monorepo-scripts/CHANGELOG.md
+++ b/packages/monorepo-scripts/CHANGELOG.md
@@ -5,11 +5,15 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.1.19 - _May 4, 2018_
+
+    * Dependencies updated
+
 ## v0.1.18 - _April 18, 2018_
 
     * Dependencies updated
 
-## v0.1.17 - _April 12, 2018_
+## v0.1.17 - _April 11, 2018_
 
     * Dependencies updated
 
@@ -17,6 +21,6 @@ CHANGELOG
 
     * Dependencies updated
 
-## v0.1.13 - _March 18, 2018_
+## v0.1.13 - _March 17, 2018_
 
     * Add postpublish utils
diff --git a/packages/monorepo-scripts/package.json b/packages/monorepo-scripts/package.json
index 733a099d1..a6b6f2d15 100644
--- a/packages/monorepo-scripts/package.json
+++ b/packages/monorepo-scripts/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/monorepo-scripts",
-    "version": "0.1.18",
+    "version": "0.1.19",
     "description": "Helper scripts for the monorepo",
     "main": "lib/index.js",
     "types": "lib/index.d.ts",
diff --git a/packages/monorepo-scripts/src/publish.ts b/packages/monorepo-scripts/src/publish.ts
index bc580c87f..e37e1d232 100644
--- a/packages/monorepo-scripts/src/publish.ts
+++ b/packages/monorepo-scripts/src/publish.ts
@@ -35,6 +35,7 @@ const packageNameToWebsitePath: { [name: string]: string } = {
     deployer: 'deployer',
     'sol-cov': 'sol-cov',
     subproviders: 'subproviders',
+    'order-utils': 'order-utils',
 };
 
 (async () => {
diff --git a/packages/order-utils/.npmignore b/packages/order-utils/.npmignore
new file mode 100644
index 000000000..89302c908
--- /dev/null
+++ b/packages/order-utils/.npmignore
@@ -0,0 +1,7 @@
+.*
+yarn-error.log
+/scripts/
+/generated_docs/
+/src/
+tsconfig.json
+/lib/monorepo_scripts/
diff --git a/packages/order-utils/CHANGELOG.json b/packages/order-utils/CHANGELOG.json
new file mode 100644
index 000000000..44f919bc2
--- /dev/null
+++ b/packages/order-utils/CHANGELOG.json
@@ -0,0 +1,29 @@
+[
+    {
+        "timestamp": 1525477860,
+        "version": "0.0.4",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1525453812,
+        "version": "0.0.3",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1525428773,
+        "version": "0.0.2",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    }
+]
diff --git a/packages/order-utils/CHANGELOG.md b/packages/order-utils/CHANGELOG.md
new file mode 100644
index 000000000..d0bb706aa
--- /dev/null
+++ b/packages/order-utils/CHANGELOG.md
@@ -0,0 +1,18 @@
+<!--
+This file is auto-generated using the monorepo-scripts package. Don't edit directly.
+Edit the package's CHANGELOG.json file only.
+-->
+
+CHANGELOG
+
+## v0.0.4 - _May 5, 2018_
+
+    * Dependencies updated
+
+## v0.0.3 - _May 4, 2018_
+
+    * Dependencies updated
+
+## v0.0.2 - _May 4, 2018_
+
+    * Dependencies updated
diff --git a/packages/order-utils/README.md b/packages/order-utils/README.md
new file mode 100644
index 000000000..4b571509a
--- /dev/null
+++ b/packages/order-utils/README.md
@@ -0,0 +1,77 @@
+## @0xproject/order-utils
+
+0x order-related utilities for those developing on top of 0x protocol.
+
+### Read the [Documentation](https://0xproject.com/docs/order-utils).
+
+## Installation
+
+```bash
+yarn add @0xproject/order-utils
+```
+
+If your project is in [TypeScript](https://www.typescriptlang.org/), add the following to your `tsconfig.json`:
+
+```json
+"compilerOptions": {
+    "typeRoots": ["node_modules/@0xproject/typescript-typings/types", "node_modules/@types"],
+}
+```
+
+## Contributing
+
+We welcome improvements and fixes from the wider community! To report bugs within this package, please create an issue in this repository.
+
+Please read our [contribution guidelines](../../CONTRIBUTING.md) before getting started.
+
+### Install dependencies
+
+If you don't have yarn workspaces enabled (Yarn < v1.0) - enable them:
+
+```bash
+yarn config set workspaces-experimental true
+```
+
+Then install dependencies
+
+```bash
+yarn install
+```
+
+### Build
+
+If this is your **first** time building this package, you must first build **all** packages within the monorepo. This is because packages that depend on other packages located inside this monorepo are symlinked when run from **within** the monorepo. This allows you to make changes across multiple packages without first publishing dependent packages to NPM. To build all packages, run the following from the monorepo root directory:
+
+```bash
+yarn lerna:rebuild
+```
+
+Or continuously rebuild on change:
+
+```bash
+yarn dev
+```
+
+You can also build this specific package by running the following from within its directory:
+
+```bash
+yarn build
+```
+
+or continuously rebuild on change:
+
+```bash
+yarn build:watch
+```
+
+### Clean
+
+```bash
+yarn clean
+```
+
+### Lint
+
+```bash
+yarn lint
+```
diff --git a/packages/order-utils/coverage/.gitkeep b/packages/order-utils/coverage/.gitkeep
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/packages/order-utils/coverage/.gitkeep
diff --git a/packages/order-utils/package.json b/packages/order-utils/package.json
new file mode 100644
index 000000000..cdb5b63b0
--- /dev/null
+++ b/packages/order-utils/package.json
@@ -0,0 +1,76 @@
+{
+    "name": "@0xproject/order-utils",
+    "version": "0.0.4",
+    "description": "0x order utils",
+    "main": "lib/src/index.js",
+    "types": "lib/src/index.d.ts",
+    "scripts": {
+        "build:watch": "tsc -w",
+        "build": "tsc && copyfiles -u 3 './lib/src/monorepo_scripts/**/*' ./scripts",
+        "test": "run-s clean build run_mocha",
+        "test:circleci": "yarn test:coverage",
+        "run_mocha": "mocha lib/test/**/*_test.js --bail --exit",
+        "test:coverage": "nyc npm run test --all && yarn coverage:report:lcov",
+        "coverage:report:lcov": "nyc report --reporter=text-lcov > coverage/lcov.info",
+        "clean": "shx rm -rf lib scripts",
+        "lint": "tslint --project .",
+        "manual:postpublish": "yarn build; node ./scripts/postpublish.js",
+        "docs:stage": "yarn build && node ./scripts/stage_docs.js",
+        "docs:json": "typedoc --excludePrivate --excludeExternals --target ES5 --json $JSON_FILE_PATH $PROJECT_FILES",
+        "upload_docs_json": "aws s3 cp generated_docs/index.json $S3_URL --profile 0xproject --grants read=uri=http://acs.amazonaws.com/groups/global/AllUsers --content-type application/json"
+    },
+    "config": {
+        "postpublish": {
+            "docPublishConfigs": {
+                "extraFileIncludes": [
+                    "../types/src/index.ts"
+                ],
+                "s3BucketPath": "s3://doc-jsons/order-utils/",
+                "s3StagingBucketPath": "s3://staging-doc-jsons/order-utils/"
+            }
+        }
+    },
+    "license": "Apache-2.0",
+    "repository": {
+        "type": "git",
+        "url": "https://github.com/0xProject/0x-monorepo.git"
+    },
+    "bugs": {
+        "url": "https://github.com/0xProject/0x-monorepo/issues"
+    },
+    "homepage": "https://github.com/0xProject/0x-monorepo/packages/order-utils/README.md",
+    "devDependencies": {
+        "@0xproject/dev-utils": "^0.4.1",
+        "@0xproject/monorepo-scripts": "^0.1.19",
+        "@0xproject/tslint-config": "^0.4.17",
+        "@types/lodash": "4.14.104",
+        "chai": "^4.0.1",
+        "chai-as-promised": "^7.1.0",
+        "chai-bignumber": "^2.0.1",
+        "copyfiles": "^1.2.0",
+        "dirty-chai": "^2.0.1",
+        "mocha": "^4.0.1",
+        "npm-run-all": "^4.1.2",
+        "shx": "^0.2.2",
+        "sinon": "^4.0.0",
+        "tslint": "5.8.0",
+        "typedoc": "0xProject/typedoc",
+        "typescript": "2.7.1"
+    },
+    "dependencies": {
+        "@0xproject/assert": "^0.2.9",
+        "@0xproject/json-schemas": "^0.7.23",
+        "@0xproject/types": "^0.6.3",
+        "@0xproject/typescript-typings": "^0.3.1",
+        "@0xproject/utils": "^0.6.1",
+        "@0xproject/web3-wrapper": "^0.6.3",
+        "@types/node": "^8.0.53",
+        "bn.js": "^4.11.8",
+        "ethereumjs-abi": "^0.6.4",
+        "ethereumjs-util": "^5.1.1",
+        "lodash": "^4.17.4"
+    },
+    "publishConfig": {
+        "access": "public"
+    }
+}
diff --git a/packages/order-utils/src/assert.ts b/packages/order-utils/src/assert.ts
new file mode 100644
index 000000000..5ac402e7e
--- /dev/null
+++ b/packages/order-utils/src/assert.ts
@@ -0,0 +1,27 @@
+import { assert as sharedAssert } from '@0xproject/assert';
+// We need those two unused imports because they're actually used by sharedAssert which gets injected here
+// tslint:disable-next-line:no-unused-variable
+import { Schema } from '@0xproject/json-schemas';
+// tslint:disable-next-line:no-unused-variable
+import { ECSignature } from '@0xproject/types';
+import { BigNumber } from '@0xproject/utils';
+import { Web3Wrapper } from '@0xproject/web3-wrapper';
+import * as _ from 'lodash';
+
+import { isValidSignature } from './signature_utils';
+
+export const assert = {
+    ...sharedAssert,
+    async isSenderAddressAsync(
+        variableName: string,
+        senderAddressHex: string,
+        web3Wrapper: Web3Wrapper,
+    ): Promise<void> {
+        sharedAssert.isETHAddressHex(variableName, senderAddressHex);
+        const isSenderAddressAvailable = await web3Wrapper.isSenderAddressAvailableAsync(senderAddressHex);
+        sharedAssert.assert(
+            isSenderAddressAvailable,
+            `Specified ${variableName} ${senderAddressHex} isn't available through the supplied web3 provider`,
+        );
+    },
+};
diff --git a/packages/order-utils/src/constants.ts b/packages/order-utils/src/constants.ts
new file mode 100644
index 000000000..ec2fe744a
--- /dev/null
+++ b/packages/order-utils/src/constants.ts
@@ -0,0 +1,3 @@
+export const constants = {
+    NULL_ADDRESS: '0x0000000000000000000000000000000000000000',
+};
diff --git a/packages/order-utils/src/globals.d.ts b/packages/order-utils/src/globals.d.ts
new file mode 100644
index 000000000..94e63a32d
--- /dev/null
+++ b/packages/order-utils/src/globals.d.ts
@@ -0,0 +1,6 @@
+declare module '*.json' {
+    const json: any;
+    /* tslint:disable */
+    export default json;
+    /* tslint:enable */
+}
diff --git a/packages/order-utils/src/index.ts b/packages/order-utils/src/index.ts
new file mode 100644
index 000000000..b85432c84
--- /dev/null
+++ b/packages/order-utils/src/index.ts
@@ -0,0 +1,6 @@
+export { getOrderHashHex, isValidOrderHash } from './order_hash';
+export { isValidSignature, signOrderHashAsync } from './signature_utils';
+export { orderFactory } from './order_factory';
+export { constants } from './constants';
+export { generatePseudoRandomSalt } from './salt';
+export { OrderError } from './types';
diff --git a/packages/order-utils/src/monorepo_scripts/postpublish.ts b/packages/order-utils/src/monorepo_scripts/postpublish.ts
new file mode 100644
index 000000000..dcb99d0f7
--- /dev/null
+++ b/packages/order-utils/src/monorepo_scripts/postpublish.ts
@@ -0,0 +1,8 @@
+import { postpublishUtils } from '@0xproject/monorepo-scripts';
+
+import * as packageJSON from '../package.json';
+import * as tsConfigJSON from '../tsconfig.json';
+
+const cwd = `${__dirname}/..`;
+// tslint:disable-next-line:no-floating-promises
+postpublishUtils.runAsync(packageJSON, tsConfigJSON, cwd);
diff --git a/packages/order-utils/src/monorepo_scripts/stage_docs.ts b/packages/order-utils/src/monorepo_scripts/stage_docs.ts
new file mode 100644
index 000000000..e732ac8eb
--- /dev/null
+++ b/packages/order-utils/src/monorepo_scripts/stage_docs.ts
@@ -0,0 +1,8 @@
+import { postpublishUtils } from '@0xproject/monorepo-scripts';
+
+import * as packageJSON from '../package.json';
+import * as tsConfigJSON from '../tsconfig.json';
+
+const cwd = `${__dirname}/..`;
+// tslint:disable-next-line:no-floating-promises
+postpublishUtils.publishDocsToStagingAsync(packageJSON, tsConfigJSON, cwd);
diff --git a/packages/0x.js/test/utils/order_factory.ts b/packages/order-utils/src/order_factory.ts
index 08f2081a4..2759aac81 100644
--- a/packages/0x.js/test/utils/order_factory.ts
+++ b/packages/order-utils/src/order_factory.ts
@@ -1,13 +1,16 @@
+import { Provider, SignedOrder } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
 import * as _ from 'lodash';
 
-import { SignedOrder, ZeroEx } from '../../src';
+import { getOrderHashHex } from './order_hash';
+import { generatePseudoRandomSalt } from './salt';
+import { signOrderHashAsync } from './signature_utils';
 
 const SHOULD_ADD_PERSONAL_MESSAGE_PREFIX = false;
 
 export const orderFactory = {
     async createSignedOrderAsync(
-        zeroEx: ZeroEx,
+        provider: Provider,
         maker: string,
         taker: string,
         makerFee: BigNumber,
@@ -33,13 +36,13 @@ export const orderFactory = {
             takerTokenAmount,
             makerTokenAddress,
             takerTokenAddress,
-            salt: ZeroEx.generatePseudoRandomSalt(),
+            salt: generatePseudoRandomSalt(),
             exchangeContractAddress,
             feeRecipient,
             expirationUnixTimestampSec,
         };
-        const orderHash = ZeroEx.getOrderHashHex(order);
-        const ecSignature = await zeroEx.signOrderHashAsync(orderHash, maker, SHOULD_ADD_PERSONAL_MESSAGE_PREFIX);
+        const orderHash = getOrderHashHex(order);
+        const ecSignature = await signOrderHashAsync(provider, orderHash, maker, SHOULD_ADD_PERSONAL_MESSAGE_PREFIX);
         const signedOrder: SignedOrder = _.assign(order, { ecSignature });
         return signedOrder;
     },
diff --git a/packages/order-utils/src/order_hash.ts b/packages/order-utils/src/order_hash.ts
new file mode 100644
index 000000000..8da11c596
--- /dev/null
+++ b/packages/order-utils/src/order_hash.ts
@@ -0,0 +1,89 @@
+import { schemas, SchemaValidator } from '@0xproject/json-schemas';
+import { Order, SignedOrder, SolidityTypes } from '@0xproject/types';
+import { BigNumber } from '@0xproject/utils';
+import BN = require('bn.js');
+import * as ethABI from 'ethereumjs-abi';
+import * as ethUtil from 'ethereumjs-util';
+import * as _ from 'lodash';
+
+import { assert } from './assert';
+
+const INVALID_TAKER_FORMAT = 'instance.taker is not of a type(s) string';
+
+/**
+ * Converts BigNumber instance to BN
+ * The only reason we convert to BN is to remain compatible with `ethABI.soliditySHA3` that
+ * expects values of Solidity type `uint` to be passed as type `BN`.
+ * We do not use BN anywhere else in the codebase.
+ */
+function bigNumberToBN(value: BigNumber) {
+    return new BN(value.toString(), 10);
+}
+
+/**
+ * Computes the orderHash for a supplied order.
+ * @param   order   An object that conforms to the Order or SignedOrder interface definitions.
+ * @return  The resulting orderHash from hashing the supplied order.
+ */
+export function getOrderHashHex(order: Order | SignedOrder): string {
+    try {
+        assert.doesConformToSchema('order', order, schemas.orderSchema);
+    } catch (error) {
+        if (_.includes(error.message, INVALID_TAKER_FORMAT)) {
+            const errMsg =
+                'Order taker must be of type string. If you want anyone to be able to fill an order - pass ZeroEx.NULL_ADDRESS';
+            throw new Error(errMsg);
+        }
+        throw error;
+    }
+    const orderParts = [
+        { value: order.exchangeContractAddress, type: SolidityTypes.Address },
+        { value: order.maker, type: SolidityTypes.Address },
+        { value: order.taker, type: SolidityTypes.Address },
+        { value: order.makerTokenAddress, type: SolidityTypes.Address },
+        { value: order.takerTokenAddress, type: SolidityTypes.Address },
+        { value: order.feeRecipient, type: SolidityTypes.Address },
+        {
+            value: bigNumberToBN(order.makerTokenAmount),
+            type: SolidityTypes.Uint256,
+        },
+        {
+            value: bigNumberToBN(order.takerTokenAmount),
+            type: SolidityTypes.Uint256,
+        },
+        {
+            value: bigNumberToBN(order.makerFee),
+            type: SolidityTypes.Uint256,
+        },
+        {
+            value: bigNumberToBN(order.takerFee),
+            type: SolidityTypes.Uint256,
+        },
+        {
+            value: bigNumberToBN(order.expirationUnixTimestampSec),
+            type: SolidityTypes.Uint256,
+        },
+        { value: bigNumberToBN(order.salt), type: SolidityTypes.Uint256 },
+    ];
+    const types = _.map(orderParts, o => o.type);
+    const values = _.map(orderParts, o => o.value);
+    const hashBuff = ethABI.soliditySHA3(types, values);
+    const hashHex = ethUtil.bufferToHex(hashBuff);
+    return hashHex;
+}
+
+/**
+ * Checks if the supplied hex encoded order hash is valid.
+ * Note: Valid means it has the expected format, not that an order with the orderHash exists.
+ * Use this method when processing orderHashes submitted as user input.
+ * @param   orderHash    Hex encoded orderHash.
+ * @return  Whether the supplied orderHash has the expected format.
+ */
+export function isValidOrderHash(orderHash: string): boolean {
+    // Since this method can be called to check if any arbitrary string conforms to an orderHash's
+    // format, we only assert that we were indeed passed a string.
+    assert.isString('orderHash', orderHash);
+    const schemaValidator = new SchemaValidator();
+    const isValid = schemaValidator.validate(orderHash, schemas.orderHashSchema).valid;
+    return isValid;
+}
diff --git a/packages/order-utils/src/salt.ts b/packages/order-utils/src/salt.ts
new file mode 100644
index 000000000..90a4197c0
--- /dev/null
+++ b/packages/order-utils/src/salt.ts
@@ -0,0 +1,18 @@
+import { BigNumber } from '@0xproject/utils';
+
+const MAX_DIGITS_IN_UNSIGNED_256_INT = 78;
+
+/**
+ * Generates a pseudo-random 256-bit salt.
+ * The salt can be included in a 0x order, ensuring that the order generates a unique orderHash
+ * and will not collide with other outstanding orders that are identical in all other parameters.
+ * @return  A pseudo-random 256-bit number that can be used as a salt.
+ */
+export function generatePseudoRandomSalt(): BigNumber {
+    // BigNumber.random returns a pseudo-random number between 0 & 1 with a passed in number of decimal places.
+    // Source: https://mikemcl.github.io/bignumber.js/#random
+    const randomNumber = BigNumber.random(MAX_DIGITS_IN_UNSIGNED_256_INT);
+    const factor = new BigNumber(10).pow(MAX_DIGITS_IN_UNSIGNED_256_INT - 1);
+    const salt = randomNumber.times(factor).round();
+    return salt;
+}
diff --git a/packages/order-utils/src/signature_utils.ts b/packages/order-utils/src/signature_utils.ts
new file mode 100644
index 000000000..b511573a8
--- /dev/null
+++ b/packages/order-utils/src/signature_utils.ts
@@ -0,0 +1,119 @@
+import { schemas } from '@0xproject/json-schemas';
+import { ECSignature, Provider } from '@0xproject/types';
+import { Web3Wrapper } from '@0xproject/web3-wrapper';
+import * as ethUtil from 'ethereumjs-util';
+import * as _ from 'lodash';
+
+import { assert } from './assert';
+import { OrderError } from './types';
+
+/**
+ * Verifies that the elliptic curve signature `signature` was generated
+ * by signing `data` with the private key corresponding to the `signerAddress` address.
+ * @param   data          The hex encoded data signed by the supplied signature.
+ * @param   signature     An object containing the elliptic curve signature parameters.
+ * @param   signerAddress The hex encoded address that signed the data, producing the supplied signature.
+ * @return  Whether the signature is valid for the supplied signerAddress and data.
+ */
+export function isValidSignature(data: string, signature: ECSignature, signerAddress: string): boolean {
+    assert.isHexString('data', data);
+    assert.doesConformToSchema('signature', signature, schemas.ecSignatureSchema);
+    assert.isETHAddressHex('signerAddress', signerAddress);
+    const normalizedSignerAddress = signerAddress.toLowerCase();
+
+    const dataBuff = ethUtil.toBuffer(data);
+    const msgHashBuff = ethUtil.hashPersonalMessage(dataBuff);
+    try {
+        const pubKey = ethUtil.ecrecover(
+            msgHashBuff,
+            signature.v,
+            ethUtil.toBuffer(signature.r),
+            ethUtil.toBuffer(signature.s),
+        );
+        const retrievedAddress = ethUtil.bufferToHex(ethUtil.pubToAddress(pubKey));
+        return retrievedAddress === signerAddress;
+    } catch (err) {
+        return false;
+    }
+}
+/**
+ * Signs an orderHash and returns it's elliptic curve signature.
+ * This method currently supports TestRPC, Geth and Parity above and below V1.6.6
+ * @param   orderHash       Hex encoded orderHash to sign.
+ * @param   signerAddress   The hex encoded Ethereum address you wish to sign it with. This address
+ *          must be available via the Provider supplied to 0x.js.
+ * @param   shouldAddPersonalMessagePrefix  Some signers add the personal message prefix `\x19Ethereum Signed Message`
+ *          themselves (e.g Parity Signer, Ledger, TestRPC) and others expect it to already be done by the client
+ *          (e.g Metamask). Depending on which signer this request is going to, decide on whether to add the prefix
+ *          before sending the request.
+ * @return  An object containing the Elliptic curve signature parameters generated by signing the orderHash.
+ */
+export async function signOrderHashAsync(
+    provider: Provider,
+    orderHash: string,
+    signerAddress: string,
+    shouldAddPersonalMessagePrefix: boolean,
+): Promise<ECSignature> {
+    assert.isHexString('orderHash', orderHash);
+    const web3Wrapper = new Web3Wrapper(provider);
+    await assert.isSenderAddressAsync('signerAddress', signerAddress, web3Wrapper);
+    const normalizedSignerAddress = signerAddress.toLowerCase();
+
+    let msgHashHex = orderHash;
+    if (shouldAddPersonalMessagePrefix) {
+        const orderHashBuff = ethUtil.toBuffer(orderHash);
+        const msgHashBuff = ethUtil.hashPersonalMessage(orderHashBuff);
+        msgHashHex = ethUtil.bufferToHex(msgHashBuff);
+    }
+
+    const signature = await web3Wrapper.signMessageAsync(normalizedSignerAddress, msgHashHex);
+
+    // HACK: There is no consensus on whether the signatureHex string should be formatted as
+    // v + r + s OR r + s + v, and different clients (even different versions of the same client)
+    // return the signature params in different orders. In order to support all client implementations,
+    // we parse the signature in both ways, and evaluate if either one is a valid signature.
+    const validVParamValues = [27, 28];
+    const ecSignatureVRS = parseSignatureHexAsVRS(signature);
+    if (_.includes(validVParamValues, ecSignatureVRS.v)) {
+        const isValidVRSSignature = isValidSignature(orderHash, ecSignatureVRS, normalizedSignerAddress);
+        if (isValidVRSSignature) {
+            return ecSignatureVRS;
+        }
+    }
+
+    const ecSignatureRSV = parseSignatureHexAsRSV(signature);
+    if (_.includes(validVParamValues, ecSignatureRSV.v)) {
+        const isValidRSVSignature = isValidSignature(orderHash, ecSignatureRSV, normalizedSignerAddress);
+        if (isValidRSVSignature) {
+            return ecSignatureRSV;
+        }
+    }
+
+    throw new Error(OrderError.InvalidSignature);
+}
+
+function parseSignatureHexAsVRS(signatureHex: string): ECSignature {
+    const signatureBuffer = ethUtil.toBuffer(signatureHex);
+    let v = signatureBuffer[0];
+    if (v < 27) {
+        v += 27;
+    }
+    const r = signatureBuffer.slice(1, 33);
+    const s = signatureBuffer.slice(33, 65);
+    const ecSignature: ECSignature = {
+        v,
+        r: ethUtil.bufferToHex(r),
+        s: ethUtil.bufferToHex(s),
+    };
+    return ecSignature;
+}
+
+function parseSignatureHexAsRSV(signatureHex: string): ECSignature {
+    const { v, r, s } = ethUtil.fromRpcSig(signatureHex);
+    const ecSignature: ECSignature = {
+        v,
+        r: ethUtil.bufferToHex(r),
+        s: ethUtil.bufferToHex(s),
+    };
+    return ecSignature;
+}
diff --git a/packages/order-utils/src/types.ts b/packages/order-utils/src/types.ts
new file mode 100644
index 000000000..f79d52359
--- /dev/null
+++ b/packages/order-utils/src/types.ts
@@ -0,0 +1,3 @@
+export enum OrderError {
+    InvalidSignature = 'INVALID_SIGNATURE',
+}
diff --git a/packages/order-utils/test/assert_test.ts b/packages/order-utils/test/assert_test.ts
new file mode 100644
index 000000000..dfd19bf86
--- /dev/null
+++ b/packages/order-utils/test/assert_test.ts
@@ -0,0 +1,35 @@
+import { web3Factory } from '@0xproject/dev-utils';
+import * as chai from 'chai';
+import 'mocha';
+
+import { assert } from '../src/assert';
+
+import { chaiSetup } from './utils/chai_setup';
+import { web3Wrapper } from './utils/web3_wrapper';
+
+chaiSetup.configure();
+const expect = chai.expect;
+
+describe('Assertion library', () => {
+    describe('#isSenderAddressHexAsync', () => {
+        it('throws when address is invalid', async () => {
+            const address = '0xdeadbeef';
+            const varName = 'address';
+            return expect(assert.isSenderAddressAsync(varName, address, web3Wrapper)).to.be.rejectedWith(
+                `Expected ${varName} to be of type ETHAddressHex, encountered: ${address}`,
+            );
+        });
+        it('throws when address is unavailable', async () => {
+            const validUnrelatedAddress = '0x8b0292b11a196601eddce54b665cafeca0347d42';
+            const varName = 'address';
+            return expect(assert.isSenderAddressAsync(varName, validUnrelatedAddress, web3Wrapper)).to.be.rejectedWith(
+                `Specified ${varName} ${validUnrelatedAddress} isn't available through the supplied web3 provider`,
+            );
+        });
+        it("doesn't throw if address is available", async () => {
+            const availableAddress = (await web3Wrapper.getAvailableAddressesAsync())[0];
+            const varName = 'address';
+            return expect(assert.isSenderAddressAsync(varName, availableAddress, web3Wrapper)).to.become(undefined);
+        });
+    });
+});
diff --git a/packages/order-utils/test/order_hash_test.ts b/packages/order-utils/test/order_hash_test.ts
new file mode 100644
index 000000000..b6dda1a43
--- /dev/null
+++ b/packages/order-utils/test/order_hash_test.ts
@@ -0,0 +1,46 @@
+import { web3Factory } from '@0xproject/dev-utils';
+import { BigNumber } from '@0xproject/utils';
+import * as chai from 'chai';
+import 'mocha';
+
+import { constants, getOrderHashHex } from '../src';
+
+import { chaiSetup } from './utils/chai_setup';
+import { web3Wrapper } from './utils/web3_wrapper';
+
+chaiSetup.configure();
+const expect = chai.expect;
+
+describe('Order hashing', () => {
+    describe('#getOrderHashHex', () => {
+        const expectedOrderHash = '0x39da987067a3c9e5f1617694f1301326ba8c8b0498ebef5df4863bed394e3c83';
+        const fakeExchangeContractAddress = '0xb69e673309512a9d726f87304c6984054f87a93b';
+        const order = {
+            maker: constants.NULL_ADDRESS,
+            taker: constants.NULL_ADDRESS,
+            feeRecipient: constants.NULL_ADDRESS,
+            makerTokenAddress: constants.NULL_ADDRESS,
+            takerTokenAddress: constants.NULL_ADDRESS,
+            exchangeContractAddress: fakeExchangeContractAddress,
+            salt: new BigNumber(0),
+            makerFee: new BigNumber(0),
+            takerFee: new BigNumber(0),
+            makerTokenAmount: new BigNumber(0),
+            takerTokenAmount: new BigNumber(0),
+            expirationUnixTimestampSec: new BigNumber(0),
+        };
+        it('calculates the order hash', async () => {
+            const orderHash = getOrderHashHex(order);
+            expect(orderHash).to.be.equal(expectedOrderHash);
+        });
+        it('throws a readable error message if taker format is invalid', async () => {
+            const orderWithInvalidtakerFormat = {
+                ...order,
+                taker: (null as any) as string,
+            };
+            const expectedErrorMessage =
+                'Order taker must be of type string. If you want anyone to be able to fill an order - pass ZeroEx.NULL_ADDRESS';
+            expect(() => getOrderHashHex(orderWithInvalidtakerFormat)).to.throw(expectedErrorMessage);
+        });
+    });
+});
diff --git a/packages/order-utils/test/signature_utils_test.ts b/packages/order-utils/test/signature_utils_test.ts
new file mode 100644
index 000000000..ede681619
--- /dev/null
+++ b/packages/order-utils/test/signature_utils_test.ts
@@ -0,0 +1,164 @@
+import { web3Factory } from '@0xproject/dev-utils';
+import { JSONRPCErrorCallback, JSONRPCRequestPayload } from '@0xproject/types';
+import { BigNumber } from '@0xproject/utils';
+import * as chai from 'chai';
+import * as _ from 'lodash';
+import 'mocha';
+import * as Sinon from 'sinon';
+
+import { generatePseudoRandomSalt, isValidOrderHash, isValidSignature, signOrderHashAsync } from '../src';
+import * as signatureUtils from '../src/signature_utils';
+
+import { chaiSetup } from './utils/chai_setup';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
+
+chaiSetup.configure();
+const expect = chai.expect;
+
+const SHOULD_ADD_PERSONAL_MESSAGE_PREFIX = false;
+
+describe('Signature utils', () => {
+    describe('#isValidSignature', () => {
+        // The Exchange smart contract `isValidSignature` method only validates orderHashes and assumes
+        // the length of the data is exactly 32 bytes. Thus for these tests, we use data of this size.
+        const dataHex = '0x6927e990021d23b1eb7b8789f6a6feaf98fe104bb0cf8259421b79f9a34222b0';
+        const signature = {
+            v: 27,
+            r: '0x61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc33',
+            s: '0x40349190569279751135161d22529dc25add4f6069af05be04cacbda2ace2254',
+        };
+        const address = '0x5409ed021d9299bf6814279a6a1411a7e866a631';
+        it("should return false if the data doesn't pertain to the signature & address", async () => {
+            expect(isValidSignature('0x0', signature, address)).to.be.false();
+        });
+        it("should return false if the address doesn't pertain to the signature & data", async () => {
+            const validUnrelatedAddress = '0x8b0292b11a196601ed2ce54b665cafeca0347d42';
+            expect(isValidSignature(dataHex, signature, validUnrelatedAddress)).to.be.false();
+        });
+        it("should return false if the signature doesn't pertain to the dataHex & address", async () => {
+            const wrongSignature = _.assign({}, signature, { v: 28 });
+            expect(isValidSignature(dataHex, wrongSignature, address)).to.be.false();
+        });
+        it('should return true if the signature does pertain to the dataHex & address', async () => {
+            const isValidSignatureLocal = isValidSignature(dataHex, signature, address);
+            expect(isValidSignatureLocal).to.be.true();
+        });
+    });
+    describe('#generateSalt', () => {
+        it('generates different salts', () => {
+            const equal = generatePseudoRandomSalt().eq(generatePseudoRandomSalt());
+            expect(equal).to.be.false();
+        });
+        it('generates salt in range [0..2^256)', () => {
+            const salt = generatePseudoRandomSalt();
+            expect(salt.greaterThanOrEqualTo(0)).to.be.true();
+            const twoPow256 = new BigNumber(2).pow(256);
+            expect(salt.lessThan(twoPow256)).to.be.true();
+        });
+    });
+    describe('#isValidOrderHash', () => {
+        it('returns false if the value is not a hex string', () => {
+            const isValid = isValidOrderHash('not a hex');
+            expect(isValid).to.be.false();
+        });
+        it('returns false if the length is wrong', () => {
+            const isValid = isValidOrderHash('0xdeadbeef');
+            expect(isValid).to.be.false();
+        });
+        it('returns true if order hash is correct', () => {
+            const isValid = isValidOrderHash('0x' + Array(65).join('0'));
+            expect(isValid).to.be.true();
+        });
+    });
+    describe('#signOrderHashAsync', () => {
+        let stubs: Sinon.SinonStub[] = [];
+        let makerAddress: string;
+        before(async () => {
+            const availableAddreses = await web3Wrapper.getAvailableAddressesAsync();
+            makerAddress = availableAddreses[0];
+        });
+        afterEach(() => {
+            // clean up any stubs after the test has completed
+            _.each(stubs, s => s.restore());
+            stubs = [];
+        });
+        it('Should return the correct ECSignature', async () => {
+            const orderHash = '0x6927e990021d23b1eb7b8789f6a6feaf98fe104bb0cf8259421b79f9a34222b0';
+            const expectedECSignature = {
+                v: 27,
+                r: '0x61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc33',
+                s: '0x40349190569279751135161d22529dc25add4f6069af05be04cacbda2ace2254',
+            };
+            const ecSignature = await signOrderHashAsync(
+                provider,
+                orderHash,
+                makerAddress,
+                SHOULD_ADD_PERSONAL_MESSAGE_PREFIX,
+            );
+            expect(ecSignature).to.deep.equal(expectedECSignature);
+        });
+        it('should return the correct ECSignature for signatureHex concatenated as R + S + V', async () => {
+            const orderHash = '0x34decbedc118904df65f379a175bb39ca18209d6ce41d5ed549d54e6e0a95004';
+            const expectedECSignature = {
+                v: 27,
+                r: '0x117902c86dfb95fe0d1badd983ee166ad259b27acb220174cbb4460d87287113',
+                s: '0x7feabdfe76e05924b484789f79af4ee7fa29ec006cedce1bbf369320d034e10b',
+            };
+
+            const fakeProvider = {
+                async sendAsync(payload: JSONRPCRequestPayload, callback: JSONRPCErrorCallback) {
+                    if (payload.method === 'eth_sign') {
+                        const [address, message] = payload.params;
+                        const signature = await web3Wrapper.signMessageAsync(address, message);
+                        callback(null, {
+                            id: 42,
+                            jsonrpc: '2.0',
+                            result: `0x${signature.substr(130)}${signature.substr(2, 128)}`,
+                        });
+                    } else {
+                        callback(null, { id: 42, jsonrpc: '2.0', result: [makerAddress] });
+                    }
+                },
+            };
+
+            const ecSignature = await signOrderHashAsync(
+                fakeProvider,
+                orderHash,
+                makerAddress,
+                SHOULD_ADD_PERSONAL_MESSAGE_PREFIX,
+            );
+            expect(ecSignature).to.deep.equal(expectedECSignature);
+        });
+        it('should return the correct ECSignature for signatureHex concatenated as V + R + S', async () => {
+            const orderHash = '0x34decbedc118904df65f379a175bb39ca18209d6ce41d5ed549d54e6e0a95004';
+            const expectedECSignature = {
+                v: 27,
+                r: '0x117902c86dfb95fe0d1badd983ee166ad259b27acb220174cbb4460d87287113',
+                s: '0x7feabdfe76e05924b484789f79af4ee7fa29ec006cedce1bbf369320d034e10b',
+            };
+            const fakeProvider = {
+                async sendAsync(payload: JSONRPCRequestPayload, callback: JSONRPCErrorCallback) {
+                    if (payload.method === 'eth_sign') {
+                        const [address, message] = payload.params;
+                        const signature = await web3Wrapper.signMessageAsync(address, message);
+                        callback(null, {
+                            id: 42,
+                            jsonrpc: '2.0',
+                            result: signature,
+                        });
+                    } else {
+                        callback(null, { id: 42, jsonrpc: '2.0', result: [makerAddress] });
+                    }
+                },
+            };
+
+            const ecSignature = await signOrderHashAsync(
+                fakeProvider,
+                orderHash,
+                makerAddress,
+                SHOULD_ADD_PERSONAL_MESSAGE_PREFIX,
+            );
+            expect(ecSignature).to.deep.equal(expectedECSignature);
+        });
+    });
+});
diff --git a/packages/order-utils/test/utils/chai_setup.ts b/packages/order-utils/test/utils/chai_setup.ts
new file mode 100644
index 000000000..078edd309
--- /dev/null
+++ b/packages/order-utils/test/utils/chai_setup.ts
@@ -0,0 +1,13 @@
+import * as chai from 'chai';
+import chaiAsPromised = require('chai-as-promised');
+import ChaiBigNumber = require('chai-bignumber');
+import * as dirtyChai from 'dirty-chai';
+
+export const chaiSetup = {
+    configure() {
+        chai.config.includeStack = true;
+        chai.use(ChaiBigNumber());
+        chai.use(dirtyChai);
+        chai.use(chaiAsPromised);
+    },
+};
diff --git a/packages/order-utils/test/utils/web3_wrapper.ts b/packages/order-utils/test/utils/web3_wrapper.ts
new file mode 100644
index 000000000..b0ccfa546
--- /dev/null
+++ b/packages/order-utils/test/utils/web3_wrapper.ts
@@ -0,0 +1,9 @@
+import { devConstants, web3Factory } from '@0xproject/dev-utils';
+import { Provider } from '@0xproject/types';
+import { Web3Wrapper } from '@0xproject/web3-wrapper';
+
+const web3 = web3Factory.create({ shouldUseInProcessGanache: true });
+const provider: Provider = web3.currentProvider;
+const web3Wrapper = new Web3Wrapper(web3.currentProvider);
+
+export { provider, web3Wrapper };
diff --git a/packages/order-utils/tsconfig.json b/packages/order-utils/tsconfig.json
new file mode 100644
index 000000000..8b4cd47a2
--- /dev/null
+++ b/packages/order-utils/tsconfig.json
@@ -0,0 +1,7 @@
+{
+    "extends": "../../tsconfig",
+    "compilerOptions": {
+        "outDir": "lib"
+    },
+    "include": ["src/**/*", "test/**/*"]
+}
diff --git a/packages/order-utils/tslint.json b/packages/order-utils/tslint.json
new file mode 100644
index 000000000..ffaefe83a
--- /dev/null
+++ b/packages/order-utils/tslint.json
@@ -0,0 +1,3 @@
+{
+    "extends": ["@0xproject/tslint-config"]
+}
diff --git a/packages/react-docs-example/package.json b/packages/react-docs-example/package.json
index 8584ebe9d..ec46957d2 100644
--- a/packages/react-docs-example/package.json
+++ b/packages/react-docs-example/package.json
@@ -1,7 +1,7 @@
 {
     "private": true,
     "name": "@0xproject/react-docs-example",
-    "version": "0.0.8",
+    "version": "0.0.11",
     "description": "An example app using react-docs",
     "scripts": {
         "lint": "tslint --project . 'ts/**/*.ts' 'ts/**/*.tsx'",
@@ -23,11 +23,11 @@
         "url": "https://github.com/0xProject/0x-monorepo.git"
     },
     "devDependencies": {
-        "@0xproject/tslint-config": "^0.4.16",
+        "@0xproject/tslint-config": "^0.4.17",
         "@types/lodash": "4.14.104",
         "@types/material-ui": "0.18.0",
         "@types/node": "^8.0.53",
-        "@types/react": "^16.0.34",
+        "@types/react": "16.3.13",
         "@types/react-dom": "^16.0.3",
         "@types/react-tap-event-plugin": "0.0.30",
         "awesome-typescript-loader": "^3.1.3",
@@ -46,7 +46,7 @@
         "webpack-dev-server": "^2.11.1"
     },
     "dependencies": {
-        "@0xproject/react-docs": "^0.0.8",
+        "@0xproject/react-docs": "^0.0.11",
         "basscss": "^8.0.3",
         "lodash": "^4.17.4",
         "material-ui": "^0.17.1",
diff --git a/packages/react-docs-example/yarn.lock b/packages/react-docs-example/yarn.lock
deleted file mode 100644
index 0251ad5d6..000000000
--- a/packages/react-docs-example/yarn.lock
+++ /dev/null
@@ -1,5100 +0,0 @@
-# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
-# yarn lockfile v1
-
-
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-  resolved "https://registry.yarnpkg.com/@0xproject/react-docs/-/react-docs-0.0.1.tgz#329d85be3c66d8a877dca7860c586b60c671ef7d"
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-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/basscss-padding/-/basscss-padding-1.1.3.tgz#69db799414e6dd58bed83776952cc299e2e6874e"
-
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-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/basscss-position/-/basscss-position-2.0.3.tgz#467180a1f8f386e9072ed8d08294d2a6e0ba4305"
-
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-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/basscss-type-scale/-/basscss-type-scale-1.0.5.tgz#23bf5e41c9d142c8061cf9829ccf23e9b3258ec7"
-
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-  version "3.0.4"
-  resolved "https://registry.yarnpkg.com/basscss-typography/-/basscss-typography-3.0.4.tgz#ec946a2bad8dd1af97be9ea108ad4bb7be932464"
-
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-  version "8.0.4"
-  resolved "https://registry.yarnpkg.com/basscss/-/basscss-8.0.4.tgz#b371a2ce25aeb9b322302f37f4e425753dd29ae1"
-  dependencies:
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-    basscss-border "^4.0.2"
-    basscss-flexbox "^1.0.2"
-    basscss-grid "^2.0.0"
-    basscss-hide "^1.0.1"
-    basscss-layout "^3.1.0"
-    basscss-margin "^1.0.8"
-    basscss-padding "^1.1.3"
-    basscss-position "^2.0.3"
-    basscss-type-scale "^1.0.5"
-    basscss-typography "^3.0.4"
-
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-  version "0.6.1"
-  resolved "https://registry.yarnpkg.com/batch/-/batch-0.6.1.tgz#dc34314f4e679318093fc760272525f94bf25c16"
-
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-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.1.tgz#63bc5dcb61331b92bc05fd528953c33462a06f8d"
-  dependencies:
-    tweetnacl "^0.14.3"
-
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-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/big.js/-/big.js-3.2.0.tgz#a5fc298b81b9e0dca2e458824784b65c52ba588e"
-
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-  version "1.11.0"
-  resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-1.11.0.tgz#46aa1751fb6a2f93ee5e689bb1087d4b14c6c205"
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-  version "0.0.9"
-  resolved "https://registry.yarnpkg.com/block-stream/-/block-stream-0.0.9.tgz#13ebfe778a03205cfe03751481ebb4b3300c126a"
-  dependencies:
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-
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-  version "4.11.8"
-  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.8.tgz#2cde09eb5ee341f484746bb0309b3253b1b1442f"
-
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-  version "1.18.2"
-  resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.18.2.tgz#87678a19d84b47d859b83199bd59bce222b10454"
-  dependencies:
-    bytes "3.0.0"
-    content-type "~1.0.4"
-    debug "2.6.9"
-    depd "~1.1.1"
-    http-errors "~1.6.2"
-    iconv-lite "0.4.19"
-    on-finished "~2.3.0"
-    qs "6.5.1"
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-    type-is "~1.6.15"
-
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-  version "3.5.0"
-  resolved "https://registry.yarnpkg.com/bonjour/-/bonjour-3.5.0.tgz#8e890a183d8ee9a2393b3844c691a42bcf7bc9f5"
-  dependencies:
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-    deep-equal "^1.0.1"
-    dns-equal "^1.0.0"
-    dns-txt "^2.0.2"
-    multicast-dns "^6.0.1"
-    multicast-dns-service-types "^1.1.0"
-
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-  version "2.10.1"
-  resolved "https://registry.yarnpkg.com/boom/-/boom-2.10.1.tgz#39c8918ceff5799f83f9492a848f625add0c766f"
-  dependencies:
-    hoek "2.x.x"
-
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-  version "1.9.2"
-  resolved "https://registry.yarnpkg.com/bowser/-/bowser-1.9.2.tgz#d66fc868ca5f4ba895bee1363c343fe7b37d3394"
-
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-  version "1.1.11"
-  resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.11.tgz#3c7fcbf529d87226f3d2f52b966ff5271eb441dd"
-  dependencies:
-    balanced-match "^1.0.0"
-    concat-map "0.0.1"
-
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-  version "1.8.5"
-  resolved "https://registry.yarnpkg.com/braces/-/braces-1.8.5.tgz#ba77962e12dff969d6b76711e914b737857bf6a7"
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-    expand-range "^1.8.1"
-    preserve "^0.2.0"
-    repeat-element "^1.1.2"
-
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-  version "2.3.1"
-  resolved "https://registry.yarnpkg.com/braces/-/braces-2.3.1.tgz#7086c913b4e5a08dbe37ac0ee6a2500c4ba691bb"
-  dependencies:
-    arr-flatten "^1.1.0"
-    array-unique "^0.3.2"
-    define-property "^1.0.0"
-    extend-shallow "^2.0.1"
-    fill-range "^4.0.0"
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-    snapdragon "^0.8.1"
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-    split-string "^3.0.2"
-    to-regex "^3.0.1"
-
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-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/brorand/-/brorand-1.1.0.tgz#12c25efe40a45e3c323eb8675a0a0ce57b22371f"
-
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-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/browserify-aes/-/browserify-aes-1.1.1.tgz#38b7ab55edb806ff2dcda1a7f1620773a477c49f"
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-    cipher-base "^1.0.0"
-    create-hash "^1.1.0"
-    evp_bytestokey "^1.0.3"
-    inherits "^2.0.1"
-    safe-buffer "^5.0.1"
-
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-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/browserify-cipher/-/browserify-cipher-1.0.0.tgz#9988244874bf5ed4e28da95666dcd66ac8fc363a"
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-    browserify-aes "^1.0.4"
-    browserify-des "^1.0.0"
-    evp_bytestokey "^1.0.0"
-
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-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/browserify-des/-/browserify-des-1.0.0.tgz#daa277717470922ed2fe18594118a175439721dd"
-  dependencies:
-    cipher-base "^1.0.1"
-    des.js "^1.0.0"
-    inherits "^2.0.1"
-
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-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/browserify-rsa/-/browserify-rsa-4.0.1.tgz#21e0abfaf6f2029cf2fafb133567a701d4135524"
-  dependencies:
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-    randombytes "^2.0.1"
-
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-  version "4.0.4"
-  resolved "https://registry.yarnpkg.com/browserify-sign/-/browserify-sign-4.0.4.tgz#aa4eb68e5d7b658baa6bf6a57e630cbd7a93d298"
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-    bn.js "^4.1.1"
-    browserify-rsa "^4.0.0"
-    create-hash "^1.1.0"
-    create-hmac "^1.1.2"
-    elliptic "^6.0.0"
-    inherits "^2.0.1"
-    parse-asn1 "^5.0.0"
-
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-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/browserify-zlib/-/browserify-zlib-0.2.0.tgz#2869459d9aa3be245fe8fe2ca1f46e2e7f54d73f"
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-    pako "~1.0.5"
-
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-  version "1.7.7"
-  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-1.7.7.tgz#0bd76704258be829b2398bb50e4b62d1a166b0b9"
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-    electron-to-chromium "^1.2.7"
-
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-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/buffer-indexof/-/buffer-indexof-1.1.1.tgz#52fabcc6a606d1a00302802648ef68f639da268c"
-
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-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/buffer-xor/-/buffer-xor-1.0.3.tgz#26e61ed1422fb70dd42e6e36729ed51d855fe8d9"
-
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-  version "4.9.1"
-  resolved "https://registry.yarnpkg.com/buffer/-/buffer-4.9.1.tgz#6d1bb601b07a4efced97094132093027c95bc298"
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-    ieee754 "^1.1.4"
-    isarray "^1.0.0"
-
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-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/builtin-modules/-/builtin-modules-1.1.1.tgz#270f076c5a72c02f5b65a47df94c5fe3a278892f"
-
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-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/builtin-status-codes/-/builtin-status-codes-3.0.0.tgz#85982878e21b98e1c66425e03d0174788f569ee8"
-
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-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/bytes/-/bytes-3.0.0.tgz#d32815404d689699f85a4ea4fa8755dd13a96048"
-
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-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/cache-base/-/cache-base-1.0.1.tgz#0a7f46416831c8b662ee36fe4e7c59d76f666ab2"
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-
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-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/camelcase-keys/-/camelcase-keys-2.1.0.tgz#308beeaffdf28119051efa1d932213c91b8f92e7"
-  dependencies:
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-    map-obj "^1.0.0"
-
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-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-1.2.1.tgz#9bb5304d2e0b56698b2c758b08a3eaa9daa58a39"
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-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-2.1.1.tgz#7c1d16d679a1bbe59ca02cacecfb011e201f5a1f"
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-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-3.0.0.tgz#32fc4b9fcdaf845fcdf7e73bb97cac2261f0ab0a"
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-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-4.1.0.tgz#d545635be1e33c542649c69173e5de6acfae34dd"
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-  version "1.6.1"
-  resolved "https://registry.yarnpkg.com/caniuse-api/-/caniuse-api-1.6.1.tgz#b534e7c734c4f81ec5fbe8aca2ad24354b962c6c"
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-caniuse-db@^1.0.30000529, caniuse-db@^1.0.30000634, caniuse-db@^1.0.30000639:
-  version "1.0.30000813"
-  resolved "https://registry.yarnpkg.com/caniuse-db/-/caniuse-db-1.0.30000813.tgz#e0a1c603f8880ad787b2a35652b2733f32a5e29a"
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-  version "0.12.0"
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-  version "0.1.3"
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-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/chain-function/-/chain-function-1.0.0.tgz#0d4ab37e7e18ead0bdc47b920764118ce58733dc"
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-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
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-chalk@^2.1.0, chalk@^2.3.0, chalk@^2.3.1:
-  version "2.3.2"
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-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/character-entities-legacy/-/character-entities-legacy-1.1.1.tgz#f40779df1a101872bb510a3d295e1fccf147202f"
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-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/character-reference-invalid/-/character-reference-invalid-1.1.1.tgz#942835f750e4ec61a308e60c2ef8cc1011202efc"
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-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-2.0.2.tgz#4dc65139eeb2714977735b6a35d06e97b494dfd7"
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-cipher-base@^1.0.0, cipher-base@^1.0.1, cipher-base@^1.0.3:
-  version "1.0.4"
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-  version "2.2.5"
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-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/cliui/-/cliui-2.1.0.tgz#4b475760ff80264c762c3a1719032e91c7fea0d1"
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-  version "3.2.0"
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-  version "1.0.3"
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-  version "4.6.0"
-  resolved "https://registry.yarnpkg.com/co/-/co-4.6.0.tgz#6ea6bdf3d853ae54ccb8e47bfa0bf3f9031fb184"
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-  version "1.1.0"
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-  version "1.0.3"
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-  version "1.0.0"
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-  version "0.3.0"
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-  resolved "https://registry.yarnpkg.com/colors/-/colors-1.1.2.tgz#168a4701756b6a7f51a12ce0c97bfa28c084ed63"
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-  resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-1.0.6.tgz#723e7df6e801ac5613113a7e445a9b69cb632818"
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-  version "2.15.0"
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-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/compare-versions/-/compare-versions-3.1.0.tgz#43310256a5c555aaed4193c04d8f154cf9c6efd5"
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-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.2.1.tgz#137918d6d78283f7df7a6b7c5a63e140e69425e6"
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-  version "2.0.13"
-  resolved "https://registry.yarnpkg.com/compressible/-/compressible-2.0.13.tgz#0d1020ab924b2fdb4d6279875c7d6daba6baa7a9"
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-  version "1.7.2"
-  resolved "https://registry.yarnpkg.com/compression/-/compression-1.7.2.tgz#aaffbcd6aaf854b44ebb280353d5ad1651f59a69"
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-    bytes "3.0.0"
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-  resolved "https://registry.yarnpkg.com/connect-history-api-fallback/-/connect-history-api-fallback-1.5.0.tgz#b06873934bc5e344fef611a196a6faae0aee015a"
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-  resolved "https://registry.yarnpkg.com/console-browserify/-/console-browserify-1.1.0.tgz#f0241c45730a9fc6323b206dbf38edc741d0bb10"
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-  resolved "https://registry.yarnpkg.com/constants-browserify/-/constants-browserify-1.0.0.tgz#c20b96d8c617748aaf1c16021760cd27fcb8cb75"
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-  version "1.0.4"
-  resolved "https://registry.yarnpkg.com/content-type/-/content-type-1.0.4.tgz#e138cc75e040c727b1966fe5e5f8c9aee256fe3b"
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-  version "1.0.6"
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-  version "4.0.0"
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-  version "5.1.0"
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-  version "3.12.0"
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-  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.4.0.tgz#cac9af8762c85836187003c8dfe193e5e2eae5df"
-  dependencies:
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-    brorand "^1.0.1"
-    hash.js "^1.0.0"
-    hmac-drbg "^1.0.0"
-    inherits "^2.0.1"
-    minimalistic-assert "^1.0.0"
-    minimalistic-crypto-utils "^1.0.0"
-
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-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/emojis-list/-/emojis-list-2.1.0.tgz#4daa4d9db00f9819880c79fa457ae5b09a1fd389"
-
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-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.2.tgz#ad3ff4c86ec2d029322f5a02c3a9a606c95b3f59"
-
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-  version "0.1.12"
-  resolved "https://registry.yarnpkg.com/encoding/-/encoding-0.1.12.tgz#538b66f3ee62cd1ab51ec323829d1f9480c74beb"
-  dependencies:
-    iconv-lite "~0.4.13"
-
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-  version "3.3.0"
-  resolved "https://registry.yarnpkg.com/enhanced-resolve/-/enhanced-resolve-3.3.0.tgz#950964ecc7f0332a42321b673b38dc8ff15535b3"
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-    memory-fs "^0.4.0"
-    object-assign "^4.0.1"
-    tapable "^0.2.5"
-
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-  version "3.4.1"
-  resolved "https://registry.yarnpkg.com/enhanced-resolve/-/enhanced-resolve-3.4.1.tgz#0421e339fd71419b3da13d129b3979040230476e"
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-    graceful-fs "^4.1.2"
-    memory-fs "^0.4.0"
-    object-assign "^4.0.1"
-    tapable "^0.2.7"
-
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-  version "0.1.7"
-  resolved "https://registry.yarnpkg.com/errno/-/errno-0.1.7.tgz#4684d71779ad39af177e3f007996f7c67c852618"
-  dependencies:
-    prr "~1.0.1"
-
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-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/error-ex/-/error-ex-1.3.1.tgz#f855a86ce61adc4e8621c3cda21e7a7612c3a8dc"
-  dependencies:
-    is-arrayish "^0.2.1"
-
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-  version "1.10.0"
-  resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.10.0.tgz#1ecb36c197842a00d8ee4c2dfd8646bb97d60864"
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-    function-bind "^1.1.1"
-    has "^1.0.1"
-    is-callable "^1.1.3"
-    is-regex "^1.0.4"
-
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-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/es-to-primitive/-/es-to-primitive-1.1.1.tgz#45355248a88979034b6792e19bb81f2b7975dd0d"
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-    is-callable "^1.1.1"
-    is-date-object "^1.0.1"
-    is-symbol "^1.0.1"
-
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-  version "0.10.39"
-  resolved "https://registry.yarnpkg.com/es5-ext/-/es5-ext-0.10.39.tgz#fca21b67559277ca4ac1a1ed7048b107b6f76d87"
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-    es6-symbol "~3.1.1"
-
-es6-iterator@^2.0.1, es6-iterator@~2.0.1, es6-iterator@~2.0.3:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/es6-iterator/-/es6-iterator-2.0.3.tgz#a7de889141a05a94b0854403b2d0a0fbfa98f3b7"
-  dependencies:
-    d "1"
-    es5-ext "^0.10.35"
-    es6-symbol "^3.1.1"
-
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-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/es6-map/-/es6-map-0.1.5.tgz#9136e0503dcc06a301690f0bb14ff4e364e949f0"
-  dependencies:
-    d "1"
-    es5-ext "~0.10.14"
-    es6-iterator "~2.0.1"
-    es6-set "~0.1.5"
-    es6-symbol "~3.1.1"
-    event-emitter "~0.3.5"
-
-es6-object-assign@^1.0.3:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/es6-object-assign/-/es6-object-assign-1.1.0.tgz#c2c3582656247c39ea107cb1e6652b6f9f24523c"
-
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-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/es6-set/-/es6-set-0.1.5.tgz#d2b3ec5d4d800ced818db538d28974db0a73ccb1"
-  dependencies:
-    d "1"
-    es5-ext "~0.10.14"
-    es6-iterator "~2.0.1"
-    es6-symbol "3.1.1"
-    event-emitter "~0.3.5"
-
-es6-symbol@3.1.1, es6-symbol@^3.1.1, es6-symbol@~3.1.1:
-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/es6-symbol/-/es6-symbol-3.1.1.tgz#bf00ef4fdab6ba1b46ecb7b629b4c7ed5715cc77"
-  dependencies:
-    d "1"
-    es5-ext "~0.10.14"
-
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-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/es6-weak-map/-/es6-weak-map-2.0.2.tgz#5e3ab32251ffd1538a1f8e5ffa1357772f92d96f"
-  dependencies:
-    d "1"
-    es5-ext "^0.10.14"
-    es6-iterator "^2.0.1"
-    es6-symbol "^3.1.1"
-
-escape-html@~1.0.3:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
-
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-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
-
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-  version "3.6.0"
-  resolved "https://registry.yarnpkg.com/escope/-/escope-3.6.0.tgz#e01975e812781a163a6dadfdd80398dc64c889c3"
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-    es6-map "^0.1.3"
-    es6-weak-map "^2.0.1"
-    esrecurse "^4.1.0"
-    estraverse "^4.1.1"
-
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-  version "2.7.3"
-  resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
-
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-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.0.tgz#4499eddcd1110e0b218bacf2fa7f7f59f55ca804"
-
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-  version "4.2.1"
-  resolved "https://registry.yarnpkg.com/esrecurse/-/esrecurse-4.2.1.tgz#007a3b9fdbc2b3bb87e4879ea19c92fdbd3942cf"
-  dependencies:
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-
-estraverse@^4.1.0, estraverse@^4.1.1:
-  version "4.2.0"
-  resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-4.2.0.tgz#0dee3fed31fcd469618ce7342099fc1afa0bdb13"
-
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-  version "1.1.6"
-  resolved "https://registry.yarnpkg.com/esutils/-/esutils-1.1.6.tgz#c01ccaa9ae4b897c6d0c3e210ae52f3c7a844375"
-
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-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.2.tgz#0abf4f1caa5bcb1f7a9d8acc6dea4faaa04bac9b"
-
-etag@~1.8.1:
-  version "1.8.1"
-  resolved "https://registry.yarnpkg.com/etag/-/etag-1.8.1.tgz#41ae2eeb65efa62268aebfea83ac7d79299b0887"
-
-event-emitter@~0.3.5:
-  version "0.3.5"
-  resolved "https://registry.yarnpkg.com/event-emitter/-/event-emitter-0.3.5.tgz#df8c69eef1647923c7157b9ce83840610b02cc39"
-  dependencies:
-    d "1"
-    es5-ext "~0.10.14"
-
-eventemitter3@1.x.x:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-1.2.0.tgz#1c86991d816ad1e504750e73874224ecf3bec508"
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-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/events/-/events-1.1.1.tgz#9ebdb7635ad099c70dcc4c2a1f5004288e8bd924"
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-  version "0.1.6"
-  resolved "https://registry.yarnpkg.com/eventsource/-/eventsource-0.1.6.tgz#0acede849ed7dd1ccc32c811bb11b944d4f29232"
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-    original ">=0.0.5"
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-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/evp_bytestokey/-/evp_bytestokey-1.0.3.tgz#7fcbdb198dc71959432efe13842684e0525acb02"
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-  version "0.7.0"
-  resolved "https://registry.yarnpkg.com/execa/-/execa-0.7.0.tgz#944becd34cc41ee32a63a9faf27ad5a65fc59777"
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-    get-stream "^3.0.0"
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-    strip-eof "^1.0.0"
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-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/expand-brackets/-/expand-brackets-0.1.5.tgz#df07284e342a807cd733ac5af72411e581d1177b"
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-
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-  version "2.1.4"
-  resolved "https://registry.yarnpkg.com/expand-brackets/-/expand-brackets-2.1.4.tgz#b77735e315ce30f6b6eff0f83b04151a22449622"
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-  version "1.8.2"
-  resolved "https://registry.yarnpkg.com/expand-range/-/expand-range-1.8.2.tgz#a299effd335fe2721ebae8e257ec79644fc85337"
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-  version "4.16.2"
-  resolved "https://registry.yarnpkg.com/express/-/express-4.16.2.tgz#e35c6dfe2d64b7dca0a5cd4f21781be3299e076c"
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-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/extend-shallow/-/extend-shallow-2.0.1.tgz#51af7d614ad9a9f610ea1bafbb989d6b1c56890f"
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-  version "3.0.2"
-  resolved "https://registry.yarnpkg.com/extend-shallow/-/extend-shallow-3.0.2.tgz#26a71aaf073b39fb2127172746131c2704028db8"
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-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.1.tgz#a755ea7bc1adfcc5a31ce7e762dbaadc5e636444"
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-  version "0.3.2"
-  resolved "https://registry.yarnpkg.com/extglob/-/extglob-0.3.2.tgz#2e18ff3d2f49ab2765cec9023f011daa8d8349a1"
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-extglob@^2.0.4:
-  version "2.0.4"
-  resolved "https://registry.yarnpkg.com/extglob/-/extglob-2.0.4.tgz#ad00fe4dc612a9232e8718711dc5cb5ab0285543"
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-extsprintf@1.3.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.3.0.tgz#96918440e3041a7a414f8c52e3c574eb3c3e1e05"
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-extsprintf@^1.2.0:
-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.4.0.tgz#e2689f8f356fad62cca65a3a91c5df5f9551692f"
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-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-1.1.0.tgz#c053477817c86b51daa853c81e059b733d023614"
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-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/fast-json-stable-stringify/-/fast-json-stable-stringify-2.0.0.tgz#d5142c0caee6b1189f87d3a76111064f86c8bbf2"
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-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/fastparse/-/fastparse-1.1.1.tgz#d1e2643b38a94d7583b479060e6c4affc94071f8"
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-  version "0.10.0"
-  resolved "https://registry.yarnpkg.com/faye-websocket/-/faye-websocket-0.10.0.tgz#4e492f8d04dfb6f89003507f6edbf2d501e7c6f4"
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-fbjs@^0.8.1, fbjs@^0.8.16, fbjs@^0.8.4, fbjs@^0.8.6, fbjs@^0.8.9:
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-  version "2.2.3"
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-  version "4.0.0"
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-  version "2.1.0"
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-  version "1.0.2"
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-  version "0.1.2"
-  resolved "https://registry.yarnpkg.com/forwarded/-/forwarded-0.1.2.tgz#98c23dab1175657b8c0573e8ceccd91b0ff18c84"
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-  resolved "https://registry.yarnpkg.com/reduce-css-calc/-/reduce-css-calc-1.3.0.tgz#747c914e049614a4c9cfbba629871ad1d2927716"
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-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/reduce-function-call/-/reduce-function-call-1.0.2.tgz#5a200bf92e0e37751752fe45b0ab330fd4b6be99"
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-  version "1.3.3"
-  resolved "https://registry.yarnpkg.com/regenerate/-/regenerate-1.3.3.tgz#0c336d3980553d755c39b586ae3b20aa49c82b7f"
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-  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.11.1.tgz#be05ad7f9bf7d22e056f9726cee5017fbf19e2e9"
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-  resolved "https://registry.yarnpkg.com/regex-cache/-/regex-cache-0.4.4.tgz#75bdc58a2a1496cec48a12835bc54c8d562336dd"
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-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/regex-not/-/regex-not-1.0.2.tgz#1f4ece27e00b0b65e0247a6810e6a85d83a5752c"
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-    safe-regex "^1.1.0"
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-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/regexpu-core/-/regexpu-core-1.0.0.tgz#86a763f58ee4d7c2f6b102e4764050de7ed90c6b"
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-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/regjsgen/-/regjsgen-0.2.0.tgz#6c016adeac554f75823fe37ac05b92d5a4edb1f7"
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-  resolved "https://registry.yarnpkg.com/regjsparser/-/regjsparser-0.1.5.tgz#7ee8f84dc6fa792d3fd0ae228d24bd949ead205c"
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-
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-  version "5.0.0"
-  resolved "https://registry.yarnpkg.com/remark-parse/-/remark-parse-5.0.0.tgz#4c077f9e499044d1d5c13f80d7a98cf7b9285d95"
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-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/remove-trailing-separator/-/remove-trailing-separator-1.1.0.tgz#c24bce2a283adad5bc3f58e0d48249b92379d8ef"
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-  resolved "https://registry.yarnpkg.com/repeat-element/-/repeat-element-1.1.2.tgz#ef089a178d1483baae4d93eb98b4f9e4e11d990a"
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-  resolved "https://registry.yarnpkg.com/repeat-string/-/repeat-string-1.6.1.tgz#8dcae470e1c88abc2d600fff4a776286da75e637"
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-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/replace-ext/-/replace-ext-1.0.0.tgz#de63128373fcbf7c3ccfa4de5a480c45a67958eb"
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-  resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-1.0.1.tgz#97f717b69d48784f5f526a6c5aa8ffdda055a4d1"
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-  resolved "https://registry.yarnpkg.com/requires-port/-/requires-port-1.0.0.tgz#925d2601d39ac485e091cf0da5c6e694dc3dcaff"
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-  version "3.0.0"
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-  version "2.0.0"
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-  resolved "https://registry.yarnpkg.com/union-value/-/union-value-1.0.0.tgz#5c71c34cb5bad5dcebe3ea0cd08207ba5aa1aea4"
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-    get-value "^2.0.6"
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-    set-value "^0.4.3"
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-uniq@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/uniq/-/uniq-1.0.1.tgz#b31c5ae8254844a3a8281541ce2b04b865a734ff"
-
-uniqid@^4.0.0:
-  version "4.1.1"
-  resolved "https://registry.yarnpkg.com/uniqid/-/uniqid-4.1.1.tgz#89220ddf6b751ae52b5f72484863528596bb84c1"
-  dependencies:
-    macaddress "^0.2.8"
-
-uniqs@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/uniqs/-/uniqs-2.0.0.tgz#ffede4b36b25290696e6e165d4a59edb998e6b02"
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-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/unist-util-is/-/unist-util-is-2.1.1.tgz#0c312629e3f960c66e931e812d3d80e77010947b"
-
-unist-util-remove-position@^1.0.0:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/unist-util-remove-position/-/unist-util-remove-position-1.1.1.tgz#5a85c1555fc1ba0c101b86707d15e50fa4c871bb"
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-    unist-util-visit "^1.1.0"
-
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-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/unist-util-stringify-position/-/unist-util-stringify-position-1.1.1.tgz#3ccbdc53679eed6ecf3777dd7f5e3229c1b6aa3c"
-
-unist-util-visit@^1.1.0, unist-util-visit@^1.3.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/unist-util-visit/-/unist-util-visit-1.3.0.tgz#41ca7c82981fd1ce6c762aac397fc24e35711444"
-  dependencies:
-    unist-util-is "^2.1.1"
-
-unpipe@1.0.0, unpipe@~1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/unpipe/-/unpipe-1.0.0.tgz#b2bf4ee8514aae6165b4817829d21b2ef49904ec"
-
-unset-value@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/unset-value/-/unset-value-1.0.0.tgz#8376873f7d2335179ffb1e6fc3a8ed0dfc8ab559"
-  dependencies:
-    has-value "^0.3.1"
-    isobject "^3.0.0"
-
-upath@^1.0.0:
-  version "1.0.4"
-  resolved "https://registry.yarnpkg.com/upath/-/upath-1.0.4.tgz#ee2321ba0a786c50973db043a50b7bcba822361d"
-
-urix@^0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/urix/-/urix-0.1.0.tgz#da937f7a62e21fec1fd18d49b35c2935067a6c72"
-
-url-parse@1.0.x:
-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/url-parse/-/url-parse-1.0.5.tgz#0854860422afdcfefeb6c965c662d4800169927b"
-  dependencies:
-    querystringify "0.0.x"
-    requires-port "1.0.x"
-
-url-parse@^1.1.8:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/url-parse/-/url-parse-1.2.0.tgz#3a19e8aaa6d023ddd27dcc44cb4fc8f7fec23986"
-  dependencies:
-    querystringify "~1.0.0"
-    requires-port "~1.0.0"
-
-url@^0.11.0:
-  version "0.11.0"
-  resolved "https://registry.yarnpkg.com/url/-/url-0.11.0.tgz#3838e97cfc60521eb73c525a8e55bfdd9e2e28f1"
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-    punycode "1.3.2"
-    querystring "0.2.0"
-
-use@^2.0.0:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/use/-/use-2.0.2.tgz#ae28a0d72f93bf22422a18a2e379993112dec8e8"
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-    define-property "^0.2.5"
-    isobject "^3.0.0"
-    lazy-cache "^2.0.2"
-
-util-deprecate@~1.0.1:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
-
-util@0.10.3, util@^0.10.3:
-  version "0.10.3"
-  resolved "https://registry.yarnpkg.com/util/-/util-0.10.3.tgz#7afb1afe50805246489e3db7fe0ed379336ac0f9"
-  dependencies:
-    inherits "2.0.1"
-
-utils-merge@1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"
-
-uuid@^3.0.0, uuid@^3.0.1:
-  version "3.2.1"
-  resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.2.1.tgz#12c528bb9d58d0b9265d9a2f6f0fe8be17ff1f14"
-
-validate-npm-package-license@^3.0.1:
-  version "3.0.3"
-  resolved "https://registry.yarnpkg.com/validate-npm-package-license/-/validate-npm-package-license-3.0.3.tgz#81643bcbef1bdfecd4623793dc4648948ba98338"
-  dependencies:
-    spdx-correct "^3.0.0"
-    spdx-expression-parse "^3.0.0"
-
-vary@~1.1.2:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.2.tgz#2299f02c6ded30d4a5961b0b9f74524a18f634fc"
-
-vendors@^1.0.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/vendors/-/vendors-1.0.1.tgz#37ad73c8ee417fb3d580e785312307d274847f22"
-
-verror@1.10.0:
-  version "1.10.0"
-  resolved "https://registry.yarnpkg.com/verror/-/verror-1.10.0.tgz#3a105ca17053af55d6e270c1f8288682e18da400"
-  dependencies:
-    assert-plus "^1.0.0"
-    core-util-is "1.0.2"
-    extsprintf "^1.2.0"
-
-vfile-location@^2.0.0:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/vfile-location/-/vfile-location-2.0.2.tgz#d3675c59c877498e492b4756ff65e4af1a752255"
-
-vfile-message@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/vfile-message/-/vfile-message-1.0.0.tgz#a6adb0474ea400fa25d929f1d673abea6a17e359"
-  dependencies:
-    unist-util-stringify-position "^1.1.1"
-
-vfile@^2.0.0:
-  version "2.3.0"
-  resolved "https://registry.yarnpkg.com/vfile/-/vfile-2.3.0.tgz#e62d8e72b20e83c324bc6c67278ee272488bf84a"
-  dependencies:
-    is-buffer "^1.1.4"
-    replace-ext "1.0.0"
-    unist-util-stringify-position "^1.0.0"
-    vfile-message "^1.0.0"
-
-vm-browserify@0.0.4:
-  version "0.0.4"
-  resolved "https://registry.yarnpkg.com/vm-browserify/-/vm-browserify-0.0.4.tgz#5d7ea45bbef9e4a6ff65f95438e0a87c357d5a73"
-  dependencies:
-    indexof "0.0.1"
-
-warning@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/warning/-/warning-3.0.0.tgz#32e5377cb572de4ab04753bdf8821c01ed605b7c"
-  dependencies:
-    loose-envify "^1.0.0"
-
-watchpack@^1.4.0:
-  version "1.5.0"
-  resolved "https://registry.yarnpkg.com/watchpack/-/watchpack-1.5.0.tgz#231e783af830a22f8966f65c4c4bacc814072eed"
-  dependencies:
-    chokidar "^2.0.2"
-    graceful-fs "^4.1.2"
-    neo-async "^2.5.0"
-
-wbuf@^1.1.0, wbuf@^1.7.2:
-  version "1.7.2"
-  resolved "https://registry.yarnpkg.com/wbuf/-/wbuf-1.7.2.tgz#d697b99f1f59512df2751be42769c1580b5801fe"
-  dependencies:
-    minimalistic-assert "^1.0.0"
-
-webpack-dev-middleware@1.12.2:
-  version "1.12.2"
-  resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-1.12.2.tgz#f8fc1120ce3b4fc5680ceecb43d777966b21105e"
-  dependencies:
-    memory-fs "~0.4.1"
-    mime "^1.5.0"
-    path-is-absolute "^1.0.0"
-    range-parser "^1.0.3"
-    time-stamp "^2.0.0"
-
-webpack-dev-server@^2.11.1:
-  version "2.11.2"
-  resolved "https://registry.yarnpkg.com/webpack-dev-server/-/webpack-dev-server-2.11.2.tgz#1f4f4c78bf1895378f376815910812daf79a216f"
-  dependencies:
-    ansi-html "0.0.7"
-    array-includes "^3.0.3"
-    bonjour "^3.5.0"
-    chokidar "^2.0.0"
-    compression "^1.5.2"
-    connect-history-api-fallback "^1.3.0"
-    debug "^3.1.0"
-    del "^3.0.0"
-    express "^4.16.2"
-    html-entities "^1.2.0"
-    http-proxy-middleware "~0.17.4"
-    import-local "^1.0.0"
-    internal-ip "1.2.0"
-    ip "^1.1.5"
-    killable "^1.0.0"
-    loglevel "^1.4.1"
-    opn "^5.1.0"
-    portfinder "^1.0.9"
-    selfsigned "^1.9.1"
-    serve-index "^1.7.2"
-    sockjs "0.3.19"
-    sockjs-client "1.1.4"
-    spdy "^3.4.1"
-    strip-ansi "^3.0.0"
-    supports-color "^5.1.0"
-    webpack-dev-middleware "1.12.2"
-    yargs "6.6.0"
-
-webpack-sources@^1.0.1:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-1.1.0.tgz#a101ebae59d6507354d71d8013950a3a8b7a5a54"
-  dependencies:
-    source-list-map "^2.0.0"
-    source-map "~0.6.1"
-
-webpack@^3.11.0:
-  version "3.11.0"
-  resolved "https://registry.yarnpkg.com/webpack/-/webpack-3.11.0.tgz#77da451b1d7b4b117adaf41a1a93b5742f24d894"
-  dependencies:
-    acorn "^5.0.0"
-    acorn-dynamic-import "^2.0.0"
-    ajv "^6.1.0"
-    ajv-keywords "^3.1.0"
-    async "^2.1.2"
-    enhanced-resolve "^3.4.0"
-    escope "^3.6.0"
-    interpret "^1.0.0"
-    json-loader "^0.5.4"
-    json5 "^0.5.1"
-    loader-runner "^2.3.0"
-    loader-utils "^1.1.0"
-    memory-fs "~0.4.1"
-    mkdirp "~0.5.0"
-    node-libs-browser "^2.0.0"
-    source-map "^0.5.3"
-    supports-color "^4.2.1"
-    tapable "^0.2.7"
-    uglifyjs-webpack-plugin "^0.4.6"
-    watchpack "^1.4.0"
-    webpack-sources "^1.0.1"
-    yargs "^8.0.2"
-
-websocket-driver@>=0.5.1:
-  version "0.7.0"
-  resolved "https://registry.yarnpkg.com/websocket-driver/-/websocket-driver-0.7.0.tgz#0caf9d2d755d93aee049d4bdd0d3fe2cca2a24eb"
-  dependencies:
-    http-parser-js ">=0.4.0"
-    websocket-extensions ">=0.1.1"
-
-websocket-extensions@>=0.1.1:
-  version "0.1.3"
-  resolved "https://registry.yarnpkg.com/websocket-extensions/-/websocket-extensions-0.1.3.tgz#5d2ff22977003ec687a4b87073dfbbac146ccf29"
-
-whatwg-fetch@>=0.10.0:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/whatwg-fetch/-/whatwg-fetch-2.0.3.tgz#9c84ec2dcf68187ff00bc64e1274b442176e1c84"
-
-whet.extend@~0.9.9:
-  version "0.9.9"
-  resolved "https://registry.yarnpkg.com/whet.extend/-/whet.extend-0.9.9.tgz#f877d5bf648c97e5aa542fadc16d6a259b9c11a1"
-
-which-module@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/which-module/-/which-module-1.0.0.tgz#bba63ca861948994ff307736089e3b96026c2a4f"
-
-which-module@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
-
-which@^1.2.9:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/which/-/which-1.3.0.tgz#ff04bdfc010ee547d780bec38e1ac1c2777d253a"
-  dependencies:
-    isexe "^2.0.0"
-
-wide-align@^1.1.0:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/wide-align/-/wide-align-1.1.2.tgz#571e0f1b0604636ebc0dfc21b0339bbe31341710"
-  dependencies:
-    string-width "^1.0.2"
-
-window-size@0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.1.0.tgz#5438cd2ea93b202efa3a19fe8887aee7c94f9c9d"
-
-wordwrap@0.0.2:
-  version "0.0.2"
-  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.2.tgz#b79669bb42ecb409f83d583cad52ca17eaa1643f"
-
-wrap-ansi@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-2.1.0.tgz#d8fc3d284dd05794fe84973caecdd1cf824fdd85"
-  dependencies:
-    string-width "^1.0.1"
-    strip-ansi "^3.0.1"
-
-wrappy@1:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"
-
-x-is-function@^1.0.4:
-  version "1.0.4"
-  resolved "https://registry.yarnpkg.com/x-is-function/-/x-is-function-1.0.4.tgz#5d294dc3d268cbdd062580e0c5df77a391d1fa1e"
-
-x-is-string@^0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/x-is-string/-/x-is-string-0.1.0.tgz#474b50865af3a49a9c4657f05acd145458f77d82"
-
-xtend@^4.0.0, xtend@^4.0.1:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
-
-y18n@^3.2.1:
-  version "3.2.1"
-  resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.1.tgz#6d15fba884c08679c0d77e88e7759e811e07fa41"
-
-yallist@^2.1.2:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/yallist/-/yallist-2.1.2.tgz#1c11f9218f076089a47dd512f93c6699a6a81d52"
-
-yargs-parser@^4.2.0:
-  version "4.2.1"
-  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-4.2.1.tgz#29cceac0dc4f03c6c87b4a9f217dd18c9f74871c"
-  dependencies:
-    camelcase "^3.0.0"
-
-yargs-parser@^7.0.0:
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-7.0.0.tgz#8d0ac42f16ea55debd332caf4c4038b3e3f5dfd9"
-  dependencies:
-    camelcase "^4.1.0"
-
-yargs@6.6.0:
-  version "6.6.0"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-6.6.0.tgz#782ec21ef403345f830a808ca3d513af56065208"
-  dependencies:
-    camelcase "^3.0.0"
-    cliui "^3.2.0"
-    decamelize "^1.1.1"
-    get-caller-file "^1.0.1"
-    os-locale "^1.4.0"
-    read-pkg-up "^1.0.1"
-    require-directory "^2.1.1"
-    require-main-filename "^1.0.1"
-    set-blocking "^2.0.0"
-    string-width "^1.0.2"
-    which-module "^1.0.0"
-    y18n "^3.2.1"
-    yargs-parser "^4.2.0"
-
-yargs@^8.0.2:
-  version "8.0.2"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-8.0.2.tgz#6299a9055b1cefc969ff7e79c1d918dceb22c360"
-  dependencies:
-    camelcase "^4.1.0"
-    cliui "^3.2.0"
-    decamelize "^1.1.1"
-    get-caller-file "^1.0.1"
-    os-locale "^2.0.0"
-    read-pkg-up "^2.0.0"
-    require-directory "^2.1.1"
-    require-main-filename "^1.0.1"
-    set-blocking "^2.0.0"
-    string-width "^2.0.0"
-    which-module "^2.0.0"
-    y18n "^3.2.1"
-    yargs-parser "^7.0.0"
-
-yargs@~3.10.0:
-  version "3.10.0"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-3.10.0.tgz#f7ee7bd857dd7c1d2d38c0e74efbd681d1431fd1"
-  dependencies:
-    camelcase "^1.0.2"
-    cliui "^2.1.0"
-    decamelize "^1.0.0"
-    window-size "0.1.0"
diff --git a/packages/react-docs/CHANGELOG.json b/packages/react-docs/CHANGELOG.json
index b7a4cb058..0cb767dfc 100644
--- a/packages/react-docs/CHANGELOG.json
+++ b/packages/react-docs/CHANGELOG.json
@@ -1,5 +1,32 @@
 [
     {
+        "timestamp": 1525477860,
+        "version": "0.0.11",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1525466747,
+        "version": "0.0.10",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1525428773,
+        "version": "0.0.9",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "version": "0.0.8",
         "changes": [
             {
diff --git a/packages/react-docs/CHANGELOG.md b/packages/react-docs/CHANGELOG.md
index c79b6888d..8a0afbeed 100644
--- a/packages/react-docs/CHANGELOG.md
+++ b/packages/react-docs/CHANGELOG.md
@@ -5,13 +5,25 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.0.11 - _May 5, 2018_
+
+    * Dependencies updated
+
+## v0.0.10 - _May 4, 2018_
+
+    * Dependencies updated
+
+## v0.0.9 - _May 4, 2018_
+
+    * Dependencies updated
+
 ## v0.0.8 - _April 18, 2018_
 
     * Added support for rendering default param values (#519)
     * Added support for rendering nested function types within interface types (#519)
     * Improve type comment rendering (#535)
 
-## v0.0.7 - _April 12, 2018_
+## v0.0.7 - _April 11, 2018_
 
     * Dependencies updated
 
@@ -26,11 +38,11 @@ CHANGELOG
     * Rename `MethodBlock` to `SignatureBlock` since it is not used to render method and function signature blocks. (#465)
     * Add support for documenting exported functions. (#465)
 
-## v0.0.3 - _March 18, 2018_
+## v0.0.3 - _March 17, 2018_
 
     * Move TS typings from devDependencies to dependencies since they are needed by the package user.
 
-## v0.0.2 - _March 18, 2018_
+## v0.0.2 - _March 17, 2018_
 
     * Move example out into a separate sub-package
     * Consolidate all `console.log` calls into `logUtils` in the `@0xproject/utils` package (#452)
diff --git a/packages/react-docs/package.json b/packages/react-docs/package.json
index 50b7c1251..fd4b7c676 100644
--- a/packages/react-docs/package.json
+++ b/packages/react-docs/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/react-docs",
-    "version": "0.0.8",
+    "version": "0.0.11",
     "description": "React documentation component for rendering TypeDoc & Doxity generated JSON",
     "main": "lib/index.js",
     "types": "lib/index.d.ts",
@@ -22,21 +22,21 @@
         "url": "https://github.com/0xProject/0x-monorepo.git"
     },
     "devDependencies": {
-        "@0xproject/dev-utils": "^0.3.6",
-        "@0xproject/monorepo-scripts": "^0.1.18",
-        "@0xproject/tslint-config": "^0.4.16",
+        "@0xproject/dev-utils": "^0.4.1",
+        "@0xproject/monorepo-scripts": "^0.1.19",
+        "@0xproject/tslint-config": "^0.4.17",
         "copyfiles": "^1.2.0",
         "shx": "^0.2.2",
         "tslint": "^5.9.1",
         "typescript": "2.7.1"
     },
     "dependencies": {
-        "@0xproject/react-shared": "^0.1.3",
-        "@0xproject/utils": "^0.5.2",
+        "@0xproject/react-shared": "^0.1.6",
+        "@0xproject/utils": "^0.6.1",
         "@types/lodash": "4.14.104",
         "@types/material-ui": "0.18.0",
         "@types/node": "^8.0.53",
-        "@types/react": "^16.0.34",
+        "@types/react": "16.3.13",
         "@types/react-dom": "^16.0.3",
         "@types/react-scroll": "0.0.31",
         "basscss": "^8.0.3",
diff --git a/packages/react-docs/src/components/documentation.tsx b/packages/react-docs/src/components/documentation.tsx
index 800892dc8..0a525f702 100644
--- a/packages/react-docs/src/components/documentation.tsx
+++ b/packages/react-docs/src/components/documentation.tsx
@@ -91,7 +91,7 @@ export class Documentation extends React.Component<DocumentationProps, Documenta
                 left: 0,
                 bottom: 0,
                 right: 0,
-                overflowZ: 'hidden',
+                overflowX: 'hidden',
                 overflowY: 'scroll',
                 minHeight: `calc(100vh - ${this.props.topBarHeight}px)`,
                 WebkitOverflowScrolling: 'touch',
diff --git a/packages/react-docs/src/types.ts b/packages/react-docs/src/types.ts
index 3b4a57ad5..f4e61edc9 100644
--- a/packages/react-docs/src/types.ts
+++ b/packages/react-docs/src/types.ts
@@ -94,6 +94,7 @@ export enum KindString {
     Method = 'Method',
     Interface = 'Interface',
     TypeAlias = 'Type alias',
+    ObjectLiteral = 'Object literal',
     Variable = 'Variable',
     Function = 'Function',
     Enumeration = 'Enumeration',
diff --git a/packages/react-docs/src/utils/typedoc_utils.ts b/packages/react-docs/src/utils/typedoc_utils.ts
index 9c89b135a..0c7803a04 100644
--- a/packages/react-docs/src/utils/typedoc_utils.ts
+++ b/packages/react-docs/src/utils/typedoc_utils.ts
@@ -93,10 +93,16 @@ export const typeDocUtils = {
                 throw new Error('`react-docs` only supports projects with 1 exported class per file');
             }
             const isClassExport = packageDefinitionWithMergedChildren.children[0].kindString === KindString.Class;
+            const isObjectLiteralExport =
+                packageDefinitionWithMergedChildren.children[0].kindString === KindString.ObjectLiteral;
             if (isClassExport) {
                 entities = packageDefinitionWithMergedChildren.children[0].children;
                 const commentObj = packageDefinitionWithMergedChildren.children[0].comment;
                 packageComment = !_.isUndefined(commentObj) ? commentObj.shortText : packageComment;
+            } else if (isObjectLiteralExport) {
+                entities = packageDefinitionWithMergedChildren.children[0].children;
+                const commentObj = packageDefinitionWithMergedChildren.children[0].comment;
+                packageComment = !_.isUndefined(commentObj) ? commentObj.shortText : packageComment;
             } else {
                 entities = packageDefinitionWithMergedChildren.children;
             }
diff --git a/packages/react-shared/CHANGELOG.json b/packages/react-shared/CHANGELOG.json
index 256174db9..1095c78ee 100644
--- a/packages/react-shared/CHANGELOG.json
+++ b/packages/react-shared/CHANGELOG.json
@@ -1,5 +1,32 @@
 [
     {
+        "timestamp": 1525477860,
+        "version": "0.1.6",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1525466747,
+        "version": "0.1.5",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1525428773,
+        "version": "0.1.4",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1524044013,
         "version": "0.1.3",
         "changes": [
diff --git a/packages/react-shared/CHANGELOG.md b/packages/react-shared/CHANGELOG.md
index a3d65356a..51d804b63 100644
--- a/packages/react-shared/CHANGELOG.md
+++ b/packages/react-shared/CHANGELOG.md
@@ -5,11 +5,23 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.1.6 - _May 5, 2018_
+
+    * Dependencies updated
+
+## v0.1.5 - _May 4, 2018_
+
+    * Dependencies updated
+
+## v0.1.4 - _May 4, 2018_
+
+    * Dependencies updated
+
 ## v0.1.3 - _April 18, 2018_
 
     * Dependencies updated
 
-## v0.1.2 - _April 12, 2018_
+## v0.1.2 - _April 11, 2018_
 
     * Dependencies updated
 
diff --git a/packages/react-shared/package.json b/packages/react-shared/package.json
index c9f0a76e3..ce5001985 100644
--- a/packages/react-shared/package.json
+++ b/packages/react-shared/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/react-shared",
-    "version": "0.1.3",
+    "version": "0.1.6",
     "description": "0x shared react components",
     "main": "lib/index.js",
     "types": "lib/index.d.ts",
@@ -22,9 +22,9 @@
         "url": "https://github.com/0xProject/0x-monorepo.git"
     },
     "devDependencies": {
-        "@0xproject/dev-utils": "^0.3.6",
-        "@0xproject/monorepo-scripts": "^0.1.18",
-        "@0xproject/tslint-config": "^0.4.16",
+        "@0xproject/dev-utils": "^0.4.1",
+        "@0xproject/monorepo-scripts": "^0.1.19",
+        "@0xproject/tslint-config": "^0.4.17",
         "copyfiles": "^1.2.0",
         "shx": "^0.2.2",
         "tslint": "^5.9.1",
@@ -34,7 +34,7 @@
         "@types/lodash": "4.14.104",
         "@types/material-ui": "0.18.0",
         "@types/node": "^8.0.53",
-        "@types/react": "^16.0.34",
+        "@types/react": "16.3.13",
         "@types/react-dom": "^16.0.3",
         "@types/react-scroll": "0.0.31",
         "basscss": "^8.0.3",
diff --git a/packages/react-shared/src/utils/colors.ts b/packages/react-shared/src/utils/colors.ts
index 7613414ae..4617fa5dc 100644
--- a/packages/react-shared/src/utils/colors.ts
+++ b/packages/react-shared/src/utils/colors.ts
@@ -28,6 +28,7 @@ const baseColors = {
     linkBlue: '#1D5CDE',
     mediumBlue: '#488AEA',
     darkBlue: '#4D5481',
+    lightTurquois: '#aefcdc',
     turquois: '#058789',
     lightPurple: '#A81CA6',
     purple: '#690596',
diff --git a/packages/sol-cov/CHANGELOG.json b/packages/sol-cov/CHANGELOG.json
index 508b70631..468957fe3 100644
--- a/packages/sol-cov/CHANGELOG.json
+++ b/packages/sol-cov/CHANGELOG.json
@@ -1,5 +1,23 @@
 [
     {
+        "timestamp": 1525477860,
+        "version": "0.0.10",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1525428773,
+        "version": "0.0.9",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1524044013,
         "version": "0.0.8",
         "changes": [
diff --git a/packages/sol-cov/CHANGELOG.md b/packages/sol-cov/CHANGELOG.md
index fa8039919..9e2995328 100644
--- a/packages/sol-cov/CHANGELOG.md
+++ b/packages/sol-cov/CHANGELOG.md
@@ -5,11 +5,19 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.0.10 - _May 5, 2018_
+
+    * Dependencies updated
+
+## v0.0.9 - _May 4, 2018_
+
+    * Dependencies updated
+
 ## v0.0.8 - _April 18, 2018_
 
     * Dependencies updated
 
-## v0.0.7 - _April 12, 2018_
+## v0.0.7 - _April 11, 2018_
 
     * Dependencies updated
 
diff --git a/packages/sol-cov/package.json b/packages/sol-cov/package.json
index 886ca52c2..4eb1147d7 100644
--- a/packages/sol-cov/package.json
+++ b/packages/sol-cov/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/sol-cov",
-    "version": "0.0.8",
+    "version": "0.0.10",
     "description": "Generate coverage reports for Solidity code",
     "main": "lib/src/index.js",
     "types": "lib/src/index.d.ts",
@@ -43,9 +43,9 @@
     },
     "homepage": "https://github.com/0xProject/0x.js/packages/sol-cov/README.md",
     "dependencies": {
-        "@0xproject/subproviders": "^0.9.0",
-        "@0xproject/types": "^0.6.1",
-        "@0xproject/typescript-typings": "^0.2.0",
+        "@0xproject/subproviders": "^0.10.1",
+        "@0xproject/types": "^0.6.3",
+        "@0xproject/typescript-typings": "^0.3.1",
         "ethereumjs-util": "^5.1.1",
         "glob": "^7.1.2",
         "istanbul": "^0.4.5",
@@ -55,8 +55,8 @@
     },
     "devDependencies": {
         "@0xproject/deployer": "^0.3.5",
-        "@0xproject/monorepo-scripts": "^0.1.18",
-        "@0xproject/tslint-config": "^0.4.16",
+        "@0xproject/monorepo-scripts": "^0.1.19",
+        "@0xproject/tslint-config": "^0.4.17",
         "@types/istanbul": "^0.4.29",
         "@types/mocha": "^2.2.42",
         "@types/node": "^8.0.53",
diff --git a/packages/sol-cov/src/collect_contract_data.ts b/packages/sol-cov/src/collect_contract_data.ts
index 1d8bc7178..bb20e98be 100644
--- a/packages/sol-cov/src/collect_contract_data.ts
+++ b/packages/sol-cov/src/collect_contract_data.ts
@@ -8,25 +8,24 @@ import { ContractData } from './types';
 export const collectContractsData = (artifactsPath: string, sourcesPath: string, networkId: number) => {
     const artifactsGlob = `${artifactsPath}/**/*.json`;
     const artifactFileNames = glob.sync(artifactsGlob, { absolute: true });
-    const contractsDataIfExists: Array<ContractData | {}> = _.map(artifactFileNames, artifactFileName => {
+    const contractsData: ContractData[] = [];
+    _.forEach(artifactFileNames, artifactFileName => {
         const artifact = JSON.parse(fs.readFileSync(artifactFileName).toString());
-        const sources = artifact.networks[networkId].sources;
-        const contractName = artifact.contract_name;
+        const sources = _.keys(artifact.sources);
+        const contractName = artifact.contractName;
         // We don't compute coverage for dependencies
-        const sourceCodes = _.map(sources, (source: string) => fs.readFileSync(source).toString());
-        if (_.isUndefined(artifact.networks[networkId])) {
-            throw new Error(`No ${contractName} artifacts found for networkId ${networkId}`);
-        }
+        const sourceCodes = _.map(sources, (source: string) =>
+            fs.readFileSync(path.join(sourcesPath, source)).toString(),
+        );
         const contractData = {
             sourceCodes,
             sources,
-            sourceMap: artifact.networks[networkId].source_map,
-            sourceMapRuntime: artifact.networks[networkId].source_map_runtime,
-            runtimeBytecode: artifact.networks[networkId].runtime_bytecode,
-            bytecode: artifact.networks[networkId].bytecode,
+            bytecode: artifact.compilerOutput.evm.bytecode.object,
+            sourceMap: artifact.compilerOutput.evm.bytecode.sourceMap,
+            runtimeBytecode: artifact.compilerOutput.evm.deployedBytecode.object,
+            sourceMapRuntime: artifact.compilerOutput.evm.deployedBytecode.sourceMap,
         };
-        return contractData;
+        contractsData.push(contractData);
     });
-    const contractsData = _.filter(contractsDataIfExists, contractData => !_.isEmpty(contractData)) as ContractData[];
     return contractsData;
 };
diff --git a/packages/sol-cov/src/coverage_manager.ts b/packages/sol-cov/src/coverage_manager.ts
index 230ccc3c9..6a57d07c9 100644
--- a/packages/sol-cov/src/coverage_manager.ts
+++ b/packages/sol-cov/src/coverage_manager.ts
@@ -29,10 +29,31 @@ import {
 import { utils } from './utils';
 
 export class CoverageManager {
+    private _sourcesPath: string;
     private _traceInfos: TraceInfo[] = [];
     private _contractsData: ContractData[] = [];
     private _getContractCodeAsync: (address: string) => Promise<string>;
-    private static _getSingleFileCoverageForTrace(
+    constructor(
+        artifactsPath: string,
+        sourcesPath: string,
+        networkId: number,
+        getContractCodeAsync: (address: string) => Promise<string>,
+    ) {
+        this._getContractCodeAsync = getContractCodeAsync;
+        this._sourcesPath = sourcesPath;
+        this._contractsData = collectContractsData(artifactsPath, this._sourcesPath, networkId);
+    }
+    public appendTraceInfo(traceInfo: TraceInfo): void {
+        this._traceInfos.push(traceInfo);
+    }
+    public async writeCoverageAsync(): Promise<void> {
+        const finalCoverage = await this._computeCoverageAsync();
+        const jsonReplacer: null = null;
+        const numberOfJsonSpaces = 4;
+        const stringifiedCoverage = JSON.stringify(finalCoverage, jsonReplacer, numberOfJsonSpaces);
+        fs.writeFileSync('coverage/coverage.json', stringifiedCoverage);
+    }
+    private _getSingleFileCoverageForTrace(
         contractData: ContractData,
         coveredPcs: number[],
         pcToSourceRange: { [programCounter: number]: SourceRange },
@@ -94,11 +115,12 @@ export class CoverageManager {
             );
             statementCoverage[modifierStatementId] = isModifierCovered;
         }
+        const absoluteFileName = path.join(this._sourcesPath, fileName);
         const partialCoverage = {
-            [contractData.sources[fileIndex]]: {
+            [absoluteFileName]: {
                 ...coverageEntriesDescription,
                 l: {}, // It's able to derive it from statement coverage
-                path: fileName,
+                path: absoluteFileName,
                 f: functionCoverage,
                 s: statementCoverage,
                 b: branchCoverage,
@@ -106,31 +128,13 @@ export class CoverageManager {
         };
         return partialCoverage;
     }
-    constructor(
-        artifactsPath: string,
-        sourcesPath: string,
-        networkId: number,
-        getContractCodeAsync: (address: string) => Promise<string>,
-    ) {
-        this._getContractCodeAsync = getContractCodeAsync;
-        this._contractsData = collectContractsData(artifactsPath, sourcesPath, networkId);
-    }
-    public appendTraceInfo(traceInfo: TraceInfo): void {
-        this._traceInfos.push(traceInfo);
-    }
-    public async writeCoverageAsync(): Promise<void> {
-        const finalCoverage = await this._computeCoverageAsync();
-        const jsonReplacer: null = null;
-        const numberOfJsonSpaces = 4;
-        const stringifiedCoverage = JSON.stringify(finalCoverage, jsonReplacer, numberOfJsonSpaces);
-        fs.writeFileSync('coverage/coverage.json', stringifiedCoverage);
-    }
     private async _computeCoverageAsync(): Promise<Coverage> {
         const collector = new Collector();
         for (const traceInfo of this._traceInfos) {
             if (traceInfo.address !== constants.NEW_CONTRACT) {
                 // Runtime transaction
-                const runtimeBytecode = (traceInfo as TraceInfoExistingContract).runtimeBytecode;
+                let runtimeBytecode = (traceInfo as TraceInfoExistingContract).runtimeBytecode;
+                runtimeBytecode = utils.removeHexPrefix(runtimeBytecode);
                 const contractData = _.find(this._contractsData, { runtimeBytecode }) as ContractData;
                 if (_.isUndefined(contractData)) {
                     throw new Error(`Transaction to an unknown address: ${traceInfo.address}`);
@@ -144,7 +148,7 @@ export class CoverageManager {
                     contractData.sources,
                 );
                 for (let fileIndex = 0; fileIndex < contractData.sources.length; fileIndex++) {
-                    const singleFileCoverageForTrace = CoverageManager._getSingleFileCoverageForTrace(
+                    const singleFileCoverageForTrace = this._getSingleFileCoverageForTrace(
                         contractData,
                         traceInfo.coveredPcs,
                         pcToSourceRange,
@@ -154,7 +158,8 @@ export class CoverageManager {
                 }
             } else {
                 // Contract creation transaction
-                const bytecode = (traceInfo as TraceInfoNewContract).bytecode;
+                let bytecode = (traceInfo as TraceInfoNewContract).bytecode;
+                bytecode = utils.removeHexPrefix(bytecode);
                 const contractData = _.find(this._contractsData, contractDataCandidate =>
                     bytecode.startsWith(contractDataCandidate.bytecode),
                 ) as ContractData;
@@ -170,7 +175,7 @@ export class CoverageManager {
                     contractData.sources,
                 );
                 for (let fileIndex = 0; fileIndex < contractData.sources.length; fileIndex++) {
-                    const singleFileCoverageForTrace = CoverageManager._getSingleFileCoverageForTrace(
+                    const singleFileCoverageForTrace = this._getSingleFileCoverageForTrace(
                         contractData,
                         traceInfo.coveredPcs,
                         pcToSourceRange,
diff --git a/packages/sol-cov/src/utils.ts b/packages/sol-cov/src/utils.ts
index f155043a1..d970c42ee 100644
--- a/packages/sol-cov/src/utils.ts
+++ b/packages/sol-cov/src/utils.ts
@@ -4,6 +4,10 @@ export const utils = {
     compareLineColumn(lhs: LineColumn, rhs: LineColumn): number {
         return lhs.line !== rhs.line ? lhs.line - rhs.line : lhs.column - rhs.column;
     },
+    removeHexPrefix(hex: string): string {
+        const hexPrefix = '0x';
+        return hex.startsWith(hexPrefix) ? hex.slice(hexPrefix.length) : hex;
+    },
     isRangeInside(childRange: SingleFileSourceRange, parentRange: SingleFileSourceRange): boolean {
         return (
             utils.compareLineColumn(parentRange.start, childRange.start) <= 0 &&
diff --git a/packages/sol-resolver/CHANGELOG.json b/packages/sol-resolver/CHANGELOG.json
index b17ba62e9..0126fa170 100644
--- a/packages/sol-resolver/CHANGELOG.json
+++ b/packages/sol-resolver/CHANGELOG.json
@@ -1,5 +1,23 @@
 [
     {
+        "timestamp": 1525477860,
+        "version": "0.0.4",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1525428773,
+        "version": "0.0.3",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1524044013,
         "version": "0.0.2",
         "changes": [
diff --git a/packages/sol-resolver/CHANGELOG.md b/packages/sol-resolver/CHANGELOG.md
index 0fe7647aa..4780544fa 100644
--- a/packages/sol-resolver/CHANGELOG.md
+++ b/packages/sol-resolver/CHANGELOG.md
@@ -5,6 +5,14 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.0.4 - _May 5, 2018_
+
+    * Dependencies updated
+
+## v0.0.3 - _May 4, 2018_
+
+    * Dependencies updated
+
 ## v0.0.2 - _April 18, 2018_
 
     * Dependencies updated
diff --git a/packages/sol-resolver/package.json b/packages/sol-resolver/package.json
index 4fdfd9421..6e4ba97e4 100644
--- a/packages/sol-resolver/package.json
+++ b/packages/sol-resolver/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/sol-resolver",
-    "version": "0.0.2",
+    "version": "0.0.4",
     "description": "Import resolver for smart contracts dependencies",
     "main": "lib/index.js",
     "types": "lib/index.d.ts",
@@ -21,15 +21,15 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/resolver/README.md",
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.18",
-        "@0xproject/tslint-config": "^0.4.16",
+        "@0xproject/monorepo-scripts": "^0.1.19",
+        "@0xproject/tslint-config": "^0.4.17",
         "copyfiles": "^1.2.0",
         "shx": "^0.2.2",
         "tslint": "5.8.0",
         "typescript": "2.7.1"
     },
     "dependencies": {
-        "@0xproject/types": "^0.6.1",
+        "@0xproject/types": "^0.6.3",
         "@0xproject/typescript-typings": "^0.0.3",
         "lodash": "^4.17.4"
     },
diff --git a/packages/sol-resolver/src/index.ts b/packages/sol-resolver/src/index.ts
index cd6ec42ec..a86053259 100644
--- a/packages/sol-resolver/src/index.ts
+++ b/packages/sol-resolver/src/index.ts
@@ -3,6 +3,7 @@ export { FallthroughResolver } from './resolvers/fallthrough_resolver';
 export { URLResolver } from './resolvers/url_resolver';
 export { NPMResolver } from './resolvers/npm_resolver';
 export { FSResolver } from './resolvers/fs_resolver';
+export { RelativeFSResolver } from './resolvers/relative_fs_resolver';
 export { NameResolver } from './resolvers/name_resolver';
 export { EnumerableResolver } from './resolvers/enumerable_resolver';
 export { Resolver } from './resolvers/resolver';
diff --git a/packages/sol-resolver/src/resolvers/name_resolver.ts b/packages/sol-resolver/src/resolvers/name_resolver.ts
index 6849b7610..76bed802e 100644
--- a/packages/sol-resolver/src/resolvers/name_resolver.ts
+++ b/packages/sol-resolver/src/resolvers/name_resolver.ts
@@ -18,7 +18,8 @@ export class NameResolver extends EnumerableResolver {
         const onFile = (filePath: string) => {
             const contractName = path.basename(filePath, SOLIDITY_FILE_EXTENSION);
             if (contractName === lookupContractName) {
-                const source = fs.readFileSync(filePath).toString();
+                const absoluteContractPath = path.join(this._contractsDir, filePath);
+                const source = fs.readFileSync(absoluteContractPath).toString();
                 contractSource = {
                     source,
                     path: filePath,
@@ -35,7 +36,8 @@ export class NameResolver extends EnumerableResolver {
         const contractSources: ContractSource[] = [];
         const onFile = (filePath: string) => {
             const contractName = path.basename(filePath, SOLIDITY_FILE_EXTENSION);
-            const source = fs.readFileSync(filePath).toString();
+            const absoluteContractPath = path.join(this._contractsDir, filePath);
+            const source = fs.readFileSync(absoluteContractPath).toString();
             const contractSource = {
                 source,
                 path: filePath,
@@ -54,9 +56,10 @@ export class NameResolver extends EnumerableResolver {
             throw new Error(`No directory found at ${dirPath}`);
         }
         for (const fileName of dirContents) {
-            const entryPath = path.join(dirPath, fileName);
-            const isDirectory = fs.lstatSync(entryPath).isDirectory();
-            const isComplete = isDirectory ? this._traverseContractsDir(entryPath, onFile) : onFile(entryPath);
+            const absoluteEntryPath = path.join(dirPath, fileName);
+            const isDirectory = fs.lstatSync(absoluteEntryPath).isDirectory();
+            const entryPath = path.relative(this._contractsDir, absoluteEntryPath);
+            const isComplete = isDirectory ? this._traverseContractsDir(absoluteEntryPath, onFile) : onFile(entryPath);
             if (isComplete) {
                 return isComplete;
             }
diff --git a/packages/sol-resolver/src/resolvers/relative_fs_resolver.ts b/packages/sol-resolver/src/resolvers/relative_fs_resolver.ts
new file mode 100644
index 000000000..2317ede83
--- /dev/null
+++ b/packages/sol-resolver/src/resolvers/relative_fs_resolver.ts
@@ -0,0 +1,26 @@
+import * as fs from 'fs';
+import * as path from 'path';
+
+import { ContractSource } from '../types';
+
+import { Resolver } from './resolver';
+
+export class RelativeFSResolver extends Resolver {
+    private _contractsDir: string;
+    constructor(contractsDir: string) {
+        super();
+        this._contractsDir = contractsDir;
+    }
+    // tslint:disable-next-line:prefer-function-over-method
+    public resolveIfExists(importPath: string): ContractSource | undefined {
+        const filePath = path.join(this._contractsDir, importPath);
+        if (fs.existsSync(filePath)) {
+            const fileContent = fs.readFileSync(filePath).toString();
+            return {
+                source: fileContent,
+                path: importPath,
+            };
+        }
+        return undefined;
+    }
+}
diff --git a/packages/sra-report/CHANGELOG.json b/packages/sra-report/CHANGELOG.json
index 0b48c3af2..22aa8ce16 100644
--- a/packages/sra-report/CHANGELOG.json
+++ b/packages/sra-report/CHANGELOG.json
@@ -1,5 +1,32 @@
 [
     {
+        "timestamp": 1525477860,
+        "version": "0.0.14",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1525453812,
+        "version": "0.0.13",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1525428773,
+        "version": "0.0.12",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1524079658,
         "version": "0.0.11",
         "changes": [
diff --git a/packages/sra-report/CHANGELOG.md b/packages/sra-report/CHANGELOG.md
index 6b210b01d..e390e76ef 100644
--- a/packages/sra-report/CHANGELOG.md
+++ b/packages/sra-report/CHANGELOG.md
@@ -5,6 +5,18 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.0.14 - _May 5, 2018_
+
+    * Dependencies updated
+
+## v0.0.13 - _May 4, 2018_
+
+    * Dependencies updated
+
+## v0.0.12 - _May 4, 2018_
+
+    * Dependencies updated
+
 ## v0.0.11 - _April 18, 2018_
 
     * Dependencies updated
diff --git a/packages/sra-report/package.json b/packages/sra-report/package.json
index 3a5d2c6e7..1fc0d3ade 100644
--- a/packages/sra-report/package.json
+++ b/packages/sra-report/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/sra-report",
-    "version": "0.0.11",
+    "version": "0.0.14",
     "description": "Generate reports for standard relayer API compliance",
     "main": "lib/src/index.js",
     "types": "lib/src/index.d.ts",
@@ -28,20 +28,20 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/sra-report/README.md",
     "dependencies": {
-        "0x.js": "^0.36.3",
-        "@0xproject/assert": "^0.2.7",
-        "@0xproject/connect": "^0.6.10",
-        "@0xproject/json-schemas": "^0.7.21",
-        "@0xproject/typescript-typings": "^0.2.0",
-        "@0xproject/utils": "^0.5.2",
+        "0x.js": "^0.37.2",
+        "@0xproject/assert": "^0.2.9",
+        "@0xproject/connect": "^0.6.12",
+        "@0xproject/json-schemas": "^0.7.23",
+        "@0xproject/typescript-typings": "^0.3.1",
+        "@0xproject/utils": "^0.6.1",
         "chalk": "^2.3.0",
         "lodash": "^4.17.4",
         "newman": "^3.9.3",
         "yargs": "^10.0.3"
     },
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.18",
-        "@0xproject/tslint-config": "^0.4.16",
+        "@0xproject/monorepo-scripts": "^0.1.19",
+        "@0xproject/tslint-config": "^0.4.17",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^2.2.48",
         "@types/nock": "^9.1.2",
diff --git a/packages/subproviders/CHANGELOG.json b/packages/subproviders/CHANGELOG.json
index d3ba7a928..799c2c99a 100644
--- a/packages/subproviders/CHANGELOG.json
+++ b/packages/subproviders/CHANGELOG.json
@@ -1,5 +1,28 @@
 [
     {
+        "timestamp": 1525477860,
+        "version": "0.10.1",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "version": "0.10.0",
+        "changes": [
+            {
+                "note": "Upgrade web3-provider-engine to 14.0.4",
+                "pr": 555
+            },
+            {
+                "note": "Relax `to` validation in base wallet subprovider for transactions that deploy contracts",
+                "pr": 555
+            }
+        ],
+        "timestamp": 1525428773
+    },
+    {
         "version": "0.9.0",
         "changes": [
             {
diff --git a/packages/subproviders/CHANGELOG.md b/packages/subproviders/CHANGELOG.md
index 7b54b1ad5..22a5f90e8 100644
--- a/packages/subproviders/CHANGELOG.md
+++ b/packages/subproviders/CHANGELOG.md
@@ -5,7 +5,16 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
-## v0.9.0 - _April 12, 2018_
+## v0.10.1 - _May 5, 2018_
+
+    * Dependencies updated
+
+## v0.10.0 - _May 4, 2018_
+
+    * Upgrade web3-provider-engine to 14.0.4 (#555)
+    * Relax `to` validation in base wallet subprovider for transactions that deploy contracts (#555)
+
+## v0.9.0 - _April 11, 2018_
 
     * Refactor RedundantRPCSubprovider into RedundantSubprovider where it now accepts an array of subproviders rather then an array of RPC endpoints (#500)
     * Add PrivateKeySubprovider and refactor shared functionality into a base wallet subprovider (#506)
@@ -23,43 +32,43 @@ CHANGELOG
     * Introduce `JSONRPCRequestPayloadWithMethod` type (#465)
     * Export `ErrorCallback` type. (#465)
 
-## v0.8.0 - _March 18, 2018_
+## v0.8.0 - _March 17, 2018_
 
     * Export `GanacheSubprovider` and `Subprovider` (#426)
     * Make all subproviders to derive from `Subprovider` (#426)
     * Add types for `NextCallback`, `OnNextCompleted` (#426)
     * Ignore `ganache-core` dependency when using package in a browser environment.
 
-## v0.7.0 - _March 8, 2018_
+## v0.7.0 - _March 7, 2018_
 
     * Updated legerco packages. Removed node-hid package as a dependency and make it an optional dependency. It is still used in integration tests but is causing problems for users on Linux distros. (#437)
 
-## v0.6.0 - _March 4, 2018_
+## v0.6.0 - _March 3, 2018_
 
     * Move web3 types from being a devDep to a dep since one cannot use this package without it (#429)
     * Add `numberOfAccounts` param to `LedgerSubprovider` method `getAccountsAsync` (#432)
 
-## v0.5.0 - _February 16, 2018_
+## v0.5.0 - _February 15, 2018_
 
     * Add EmptyWalletSubprovider and FakeGasEstimateSubprovider (#392)
 
-## v0.4.1 - _February 9, 2018_
+## v0.4.1 - _February 8, 2018_
 
     * Fix publishing issue where .npmignore was not properly excluding undesired content (#389)
 
-## v0.4.0 - _February 7, 2018_
+## v0.4.0 - _February 6, 2018_
 
     * Added NonceTrackerSubprovider (#355)
     * InjectedWeb3Subprovider accepts a Provider in the constructor, previously it was a Web3 object (#363)
 
-## v0.3.6 - _January 28, 2018_
+## v0.3.6 - _January 27, 2018_
 
     * Return a transaction hash from `_sendTransactionAsync` (#303)
 
-## v0.3.0 - _December 28, 2017_
+## v0.3.0 - _December 27, 2017_
 
     * Allow LedgerSubprovider to handle `eth_sign` in addition to `personal_sign` RPC requests
 
-## v0.2.0 - _December 20, 2017_
+## v0.2.0 - _December 19, 2017_
 
     * Improve the performance of address fetching (#271)
diff --git a/packages/subproviders/package.json b/packages/subproviders/package.json
index aaa0f657c..238c8417a 100644
--- a/packages/subproviders/package.json
+++ b/packages/subproviders/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/subproviders",
-    "version": "0.9.0",
+    "version": "0.10.1",
     "main": "lib/src/index.js",
     "types": "lib/src/index.d.ts",
     "license": "Apache-2.0",
@@ -36,10 +36,10 @@
         }
     },
     "dependencies": {
-        "@0xproject/assert": "^0.2.7",
-        "@0xproject/types": "^0.6.1",
-        "@0xproject/typescript-typings": "^0.2.0",
-        "@0xproject/utils": "^0.5.2",
+        "@0xproject/assert": "^0.2.9",
+        "@0xproject/types": "^0.6.3",
+        "@0xproject/typescript-typings": "^0.3.1",
+        "@0xproject/utils": "^0.6.1",
         "@ledgerhq/hw-app-eth": "^4.3.0",
         "@ledgerhq/hw-transport-u2f": "^4.3.0",
         "bip39": "^2.5.0",
@@ -51,12 +51,12 @@
         "lodash": "^4.17.4",
         "semaphore-async-await": "^1.5.1",
         "web3": "^0.20.0",
-        "web3-provider-engine": "^13.0.1"
+        "web3-provider-engine": "^14.0.4"
     },
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.18",
-        "@0xproject/tslint-config": "^0.4.16",
-        "@0xproject/utils": "^0.5.2",
+        "@0xproject/monorepo-scripts": "^0.1.19",
+        "@0xproject/tslint-config": "^0.4.17",
+        "@0xproject/utils": "^0.6.1",
         "@types/bip39": "^2.4.0",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^2.2.42",
diff --git a/packages/subproviders/src/subproviders/base_wallet_subprovider.ts b/packages/subproviders/src/subproviders/base_wallet_subprovider.ts
index 0a9b99ae4..f68d7eb29 100644
--- a/packages/subproviders/src/subproviders/base_wallet_subprovider.ts
+++ b/packages/subproviders/src/subproviders/base_wallet_subprovider.ts
@@ -9,9 +9,10 @@ import { Subprovider } from './subprovider';
 
 export abstract class BaseWalletSubprovider extends Subprovider {
     protected static _validateTxParams(txParams: PartialTxParams) {
-        assert.isETHAddressHex('to', txParams.to);
+        if (!_.isUndefined(txParams.to)) {
+            assert.isETHAddressHex('to', txParams.to);
+        }
         assert.isHexString('nonce', txParams.nonce);
-        assert.isHexString('gas', txParams.gas);
     }
     private static _validateSender(sender: string) {
         if (_.isUndefined(sender) || !addressUtils.isAddress(sender)) {
diff --git a/packages/testnet-faucets/package.json b/packages/testnet-faucets/package.json
index 4350b76ca..481770310 100644
--- a/packages/testnet-faucets/package.json
+++ b/packages/testnet-faucets/package.json
@@ -1,7 +1,7 @@
 {
     "private": true,
     "name": "@0xproject/testnet-faucets",
-    "version": "1.0.26",
+    "version": "1.0.29",
     "description": "A faucet micro-service that dispenses test ERC20 tokens or Ether",
     "main": "server.js",
     "scripts": {
@@ -15,10 +15,10 @@
     "author": "Fabio Berger",
     "license": "Apache-2.0",
     "dependencies": {
-        "0x.js": "^0.36.3",
-        "@0xproject/subproviders": "^0.9.0",
-        "@0xproject/typescript-typings": "^0.2.0",
-        "@0xproject/utils": "^0.5.2",
+        "0x.js": "^0.37.2",
+        "@0xproject/subproviders": "^0.10.1",
+        "@0xproject/typescript-typings": "^0.3.1",
+        "@0xproject/utils": "^0.6.1",
         "body-parser": "^1.17.1",
         "ethereumjs-tx": "^1.3.3",
         "ethereumjs-util": "^5.1.1",
@@ -26,10 +26,10 @@
         "lodash": "^4.17.4",
         "rollbar": "^0.6.5",
         "web3": "^0.20.0",
-        "web3-provider-engine": "^13.0.1"
+        "web3-provider-engine": "^14.0.4"
     },
     "devDependencies": {
-        "@0xproject/tslint-config": "^0.4.16",
+        "@0xproject/tslint-config": "^0.4.17",
         "@types/body-parser": "^1.16.1",
         "@types/express": "^4.0.35",
         "@types/lodash": "4.14.104",
diff --git a/packages/tslint-config/CHANGELOG.json b/packages/tslint-config/CHANGELOG.json
index 2596ec925..ac59f7b19 100644
--- a/packages/tslint-config/CHANGELOG.json
+++ b/packages/tslint-config/CHANGELOG.json
@@ -1,5 +1,14 @@
 [
     {
+        "timestamp": 1525428773,
+        "version": "0.4.17",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1524044013,
         "version": "0.4.16",
         "changes": [
diff --git a/packages/tslint-config/CHANGELOG.md b/packages/tslint-config/CHANGELOG.md
index 107a96627..6f5042a52 100644
--- a/packages/tslint-config/CHANGELOG.md
+++ b/packages/tslint-config/CHANGELOG.md
@@ -5,11 +5,15 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.4.17 - _May 4, 2018_
+
+    * Dependencies updated
+
 ## v0.4.16 - _April 18, 2018_
 
     * Dependencies updated
 
-## v0.4.15 - _April 12, 2018_
+## v0.4.15 - _April 11, 2018_
 
     * Dependencies updated
 
@@ -21,28 +25,28 @@ CHANGELOG
 
     * Dependencies updated
 
-## v0.4.9 - _February 9, 2018_
+## v0.4.9 - _February 8, 2018_
 
     * Move devDeps to deps to fix missed dependency issue in published package.
 
-## v0.4.8 - _February 9, 2018_
+## v0.4.8 - _February 8, 2018_
 
     * Fix publish issue where custom TSLint rules were not being included (#389)
 
-## v0.4.7 - _February 7, 2018_
+## v0.4.7 - _February 6, 2018_
 
     * Modified custom 'underscore-privates' rule, changing it to 'underscore-private-and-protected' requiring underscores to be prepended to both private and protected variable names (#354)
 
-## v0.4.0 - _December 28, 2017_
+## v0.4.0 - _December 27, 2017_
 
     * Added custom 'underscore-privates' rule, requiring underscores to be prepended to private variable names
     * Because our tools can be used in both a TS and JS environment, we want to make the private methods of any public facing interface show up at the bottom of auto-complete lists. Additionally, we wanted to remain consistent with respect to our usage of underscores in order to enforce this rule with a linter rule, rather then manual code reviews.
 
-## v0.3.0 - _December 20, 2017_
+## v0.3.0 - _December 19, 2017_
 
     * Added rules for unused imports, variables and Async suffixes (#265)
 
-## v0.1.0 - _November 14, 2017_
+## v0.1.0 - _November 13, 2017_
 
     * Re-published TsLintConfig previously published under NPM package `tslint-config-0xproject`
     * Updated to TSLint v5.8.0, requiring several rule additions to keep our conventions aligned.
diff --git a/packages/tslint-config/package.json b/packages/tslint-config/package.json
index 5cbda8c84..92235f6a1 100644
--- a/packages/tslint-config/package.json
+++ b/packages/tslint-config/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/tslint-config",
-    "version": "0.4.16",
+    "version": "0.4.17",
     "description": "Lint rules related to 0xProject for TSLint",
     "main": "tslint.json",
     "scripts": {
@@ -31,7 +31,7 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/tslint-config/README.md",
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.18",
+        "@0xproject/monorepo-scripts": "^0.1.19",
         "@types/lodash": "4.14.104",
         "copyfiles": "^1.2.0",
         "shx": "^0.2.2",
diff --git a/packages/types/CHANGELOG.json b/packages/types/CHANGELOG.json
index 0728b8070..241acbf9c 100644
--- a/packages/types/CHANGELOG.json
+++ b/packages/types/CHANGELOG.json
@@ -1,5 +1,23 @@
 [
     {
+        "timestamp": 1525477860,
+        "version": "0.6.3",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1525428773,
+        "version": "0.6.2",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1524044013,
         "version": "0.6.1",
         "changes": [
diff --git a/packages/types/CHANGELOG.md b/packages/types/CHANGELOG.md
index 4b866c63f..edfd42269 100644
--- a/packages/types/CHANGELOG.md
+++ b/packages/types/CHANGELOG.md
@@ -5,11 +5,19 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.6.3 - _May 5, 2018_
+
+    * Dependencies updated
+
+## v0.6.2 - _May 4, 2018_
+
+    * Dependencies updated
+
 ## v0.6.1 - _April 18, 2018_
 
     * Dependencies updated
 
-## v0.6.0 - _April 12, 2018_
+## v0.6.0 - _April 11, 2018_
 
     * Add Provider type (#501)
 
@@ -21,25 +29,25 @@ CHANGELOG
 
     * Dependencies updated
 
-## v0.4.0 - _March 18, 2018_
+## v0.4.0 - _March 17, 2018_
 
     * Remove `JSONRPCPayload` (#426)
     * Consolidate `Order`, `SignedOrder`, and `ECSignature` into the `@0xproject/types` package (#456)
 
-## v0.3.1 - _March 8, 2018_
+## v0.3.1 - _March 7, 2018_
 
     * Added `RawLogEntry` type.
 
-## v0.3.0 - _March 4, 2018_
+## v0.3.0 - _March 3, 2018_
 
     * Add `data` to `TxData` (#413)
     * Add `number` as an option to `ContractEventArg` (#413)
     * Move web3 types from devDep to dep since required when using this package (#429)
 
-## v0.2.1 - _February 9, 2018_
+## v0.2.1 - _February 8, 2018_
 
     * Fix publishing issue where .npmignore was not properly excluding undesired content (#389)
 
-## v0.2.0 - _February 7, 2018_
+## v0.2.0 - _February 6, 2018_
 
     * Added BlockLiteralParam and BlockParam, refactored out of 0x.js types. (#355)
diff --git a/packages/types/package.json b/packages/types/package.json
index 50241810d..0971f424e 100644
--- a/packages/types/package.json
+++ b/packages/types/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/types",
-    "version": "0.6.1",
+    "version": "0.6.3",
     "description": "0x types",
     "main": "lib/index.js",
     "types": "lib/index.d.ts",
@@ -21,15 +21,15 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/types/README.md",
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.18",
-        "@0xproject/tslint-config": "^0.4.16",
-        "@types/node": "^8.0.53",
+        "@0xproject/monorepo-scripts": "^0.1.19",
+        "@0xproject/tslint-config": "^0.4.17",
         "copyfiles": "^1.2.0",
         "shx": "^0.2.2",
         "tslint": "5.8.0",
         "typescript": "2.7.1"
     },
     "dependencies": {
+        "@types/node": "^8.0.53",
         "bignumber.js": "~4.1.0"
     },
     "publishConfig": {
diff --git a/packages/typescript-typings/CHANGELOG.json b/packages/typescript-typings/CHANGELOG.json
index f3f68d509..84b92b56c 100644
--- a/packages/typescript-typings/CHANGELOG.json
+++ b/packages/typescript-typings/CHANGELOG.json
@@ -1,12 +1,22 @@
 [
     {
+        "timestamp": 1525477860,
+        "version": "0.3.1",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "version": "0.3.0",
         "changes": [
             {
                 "note": "Add types for `ethers.js`, removing `ethers-contracts`",
                 "pr": 540
             }
-        ]
+        ],
+        "timestamp": 1525428773
     },
     {
         "version": "0.2.0",
diff --git a/packages/typescript-typings/CHANGELOG.md b/packages/typescript-typings/CHANGELOG.md
index 971e2dcc4..ad7622071 100644
--- a/packages/typescript-typings/CHANGELOG.md
+++ b/packages/typescript-typings/CHANGELOG.md
@@ -5,11 +5,19 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.3.1 - _May 5, 2018_
+
+    * Dependencies updated
+
+## v0.3.0 - _May 4, 2018_
+
+    * Add types for `ethers.js`, removing `ethers-contracts` (#540)
+
 ## v0.2.0 - _April 18, 2018_
 
     * Add types for `solc.compileStandardWrapper` (#509)
 
-## v0.1.0 - _April 12, 2018_
+## v0.1.0 - _April 11, 2018_
 
     * Add types for more packages (#501)
     * Add types for HDKey (#507)
diff --git a/packages/typescript-typings/package.json b/packages/typescript-typings/package.json
index f58fe0f66..ad865854c 100644
--- a/packages/typescript-typings/package.json
+++ b/packages/typescript-typings/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/typescript-typings",
-    "version": "0.2.0",
+    "version": "0.3.1",
     "description": "0x project typescript type definitions",
     "scripts": {
         "build": "tsc && copyfiles -u 1 './lib/**/*' ./scripts",
@@ -21,11 +21,11 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/typescript-typings#readme",
     "dependencies": {
-        "@0xproject/types": "^0.6.1",
+        "@0xproject/types": "^0.6.3",
         "bignumber.js": "~4.1.0"
     },
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.18",
+        "@0xproject/monorepo-scripts": "^0.1.19",
         "copyfiles": "^1.2.0",
         "shx": "^0.2.2"
     },
diff --git a/packages/typescript-typings/types/solc/index.d.ts b/packages/typescript-typings/types/solc/index.d.ts
index b20f9b2ff..5a87ac267 100644
--- a/packages/typescript-typings/types/solc/index.d.ts
+++ b/packages/typescript-typings/types/solc/index.d.ts
@@ -59,32 +59,33 @@ declare module 'solc' {
         | 'evm.gasEstimates'
         | 'ewasm.wast'
         | 'ewasm.wasm';
+    export interface CompilerSettings {
+        remappings?: string[];
+        optimizer?: {
+            enabled: boolean;
+            runs?: number;
+        };
+        evmVersion?: 'homestead' | 'tangerineWhistle' | 'spuriousDragon' | 'byzantium' | 'constantinople';
+        metadata?: {
+            useLiteralContent: true;
+        };
+        libraries?: {
+            [fileName: string]: {
+                [libName: string]: string;
+            };
+        };
+        outputSelection: {
+            [fileName: string]: {
+                [contractName: string]: OutputField[];
+            };
+        };
+    }
     export interface StandardInput {
         language: 'Solidity' | 'serpent' | 'lll' | 'assembly';
         sources: {
             [fileName: string]: Source;
         };
-        settings: {
-            remappings?: string[];
-            optimizer?: {
-                enabled: boolean;
-                runs?: number;
-            };
-            evmVersion?: 'homestead' | 'tangerineWhistle' | 'spuriousDragon' | 'byzantium' | 'constantinople';
-            metadata?: {
-                useLiteralContent: true;
-            };
-            libraries?: {
-                [fileName: string]: {
-                    [libName: string]: string;
-                };
-            };
-            outputSelection: {
-                [fileName: string]: {
-                    [contractName: string]: OutputField[];
-                };
-            };
-        };
+        settings: CompilerSettings;
     }
     export type ErrorType =
         | 'JSONError'
@@ -114,6 +115,19 @@ declare module 'solc' {
         formattedMessage?: string;
     }
     import { ContractAbi } from '@0xproject/types';
+    export interface StandardContractOutput {
+        abi: ContractAbi;
+        evm: {
+            bytecode: {
+                object: string;
+                sourceMap: string;
+            };
+            deployedBytecode: {
+                object: string;
+                sourceMap: string;
+            };
+        };
+    }
     export interface StandardOutput {
         errors: Error[];
         sources: {
@@ -125,19 +139,7 @@ declare module 'solc' {
         };
         contracts: {
             [fileName: string]: {
-                [contractName: string]: {
-                    abi: ContractAbi;
-                    evm: {
-                        bytecode: {
-                            object: string;
-                            sourceMap: string;
-                        };
-                        deployedBytecode: {
-                            object: string;
-                            sourceMap: string;
-                        };
-                    };
-                };
+                [contractName: string]: StandardContractOutput;
             };
         };
     }
diff --git a/packages/utils/CHANGELOG.json b/packages/utils/CHANGELOG.json
index e7f3c052c..d3c7da7b9 100644
--- a/packages/utils/CHANGELOG.json
+++ b/packages/utils/CHANGELOG.json
@@ -1,12 +1,22 @@
 [
     {
+        "timestamp": 1525477860,
+        "version": "0.6.1",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "version": "0.6.0",
         "changes": [
             {
                 "note": "Update ethers-contracts to ethers.js",
                 "pr": 540
             }
-        ]
+        ],
+        "timestamp": 1525428773
     },
     {
         "version": "0.5.2",
diff --git a/packages/utils/CHANGELOG.md b/packages/utils/CHANGELOG.md
index 1f4a76d24..92e466b17 100644
--- a/packages/utils/CHANGELOG.md
+++ b/packages/utils/CHANGELOG.md
@@ -5,11 +5,19 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.6.1 - _May 5, 2018_
+
+    * Dependencies updated
+
+## v0.6.0 - _May 4, 2018_
+
+    * Update ethers-contracts to ethers.js (#540)
+
 ## v0.5.2 - _April 18, 2018_
 
     * Export NULL_BYTES constant (#500)
 
-## v0.5.1 - _April 12, 2018_
+## v0.5.1 - _April 11, 2018_
 
     * Dependencies updated
 
@@ -21,28 +29,28 @@ CHANGELOG
 
     * Dependencies updated
 
-## v0.4.3 - _March 18, 2018_
+## v0.4.3 - _March 17, 2018_
 
     * Add `@types/node` to dependencies since `intervalUtils` has the `NodeJS` type as part of its public interface.
 
-## v0.4.2 - _March 18, 2018_
+## v0.4.2 - _March 17, 2018_
 
     * Consolidate all `console.log` calls into `logUtils` in the `@0xproject/utils` package (#452)
 
-## v0.4.0 - _March 4, 2018_
+## v0.4.0 - _March 3, 2018_
 
     * Use `ethers-contracts` as a backend to decode event args (#413)
     * Move web3 types from devDep to dep since required when using this package (#429)
 
-## v0.3.2 - _February 9, 2018_
+## v0.3.2 - _February 8, 2018_
 
     * Fix publishing issue where .npmignore was not properly excluding undesired content (#389)
 
-## v0.3.0 - _February 5, 2018_
+## v0.3.0 - _February 4, 2018_
 
     * Fix a bug related to event signature collisions (argument indexes aren't included in event signatures) in the abi_decoder. The decoder used to throw on unknown events with identical signatures as a known event (except indexes). (#366)
 
-## v0.2.0 - _January 17, 2018_
+## v0.2.0 - _January 16, 2018_
 
     * Add `onError` parameter to `intervalUtils.setAsyncExcludingInterval` (#312)
     * Add `intervalUtils.setInterval` (#312)
diff --git a/packages/utils/package.json b/packages/utils/package.json
index f309c2126..496ea1fb0 100644
--- a/packages/utils/package.json
+++ b/packages/utils/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/utils",
-    "version": "0.5.2",
+    "version": "0.6.1",
     "description": "0x TS utils",
     "main": "lib/index.js",
     "types": "lib/index.d.ts",
@@ -21,8 +21,8 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/utils/README.md",
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.18",
-        "@0xproject/tslint-config": "^0.4.16",
+        "@0xproject/monorepo-scripts": "^0.1.19",
+        "@0xproject/tslint-config": "^0.4.17",
         "@types/lodash": "4.14.104",
         "copyfiles": "^1.2.0",
         "npm-run-all": "^4.1.2",
@@ -31,8 +31,8 @@
         "typescript": "2.7.1"
     },
     "dependencies": {
-        "@0xproject/types": "^0.6.1",
-        "@0xproject/typescript-typings": "^0.2.0",
+        "@0xproject/types": "^0.6.3",
+        "@0xproject/typescript-typings": "^0.3.1",
         "@types/node": "^8.0.53",
         "bignumber.js": "~4.1.0",
         "ethers": "^3.0.15",
diff --git a/packages/web3-wrapper/CHANGELOG.json b/packages/web3-wrapper/CHANGELOG.json
index c87ef3bac..35e4383fd 100644
--- a/packages/web3-wrapper/CHANGELOG.json
+++ b/packages/web3-wrapper/CHANGELOG.json
@@ -1,5 +1,23 @@
 [
     {
+        "timestamp": 1525477860,
+        "version": "0.6.3",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1525428773,
+        "version": "0.6.2",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1524044013,
         "version": "0.6.1",
         "changes": [
diff --git a/packages/web3-wrapper/CHANGELOG.md b/packages/web3-wrapper/CHANGELOG.md
index f5bda9ad9..3358c9a01 100644
--- a/packages/web3-wrapper/CHANGELOG.md
+++ b/packages/web3-wrapper/CHANGELOG.md
@@ -5,11 +5,19 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.6.3 - _May 5, 2018_
+
+    * Dependencies updated
+
+## v0.6.2 - _May 4, 2018_
+
+    * Dependencies updated
+
 ## v0.6.1 - _April 18, 2018_
 
     * Dependencies updated
 
-## v0.6.0 - _April 12, 2018_
+## v0.6.0 - _April 11, 2018_
 
     * Make `isAddress` and `toWei` static (#501)
     * Add static methods `toUnitAmount` and `toBaseUnitAmount` (#501)
@@ -24,19 +32,19 @@ CHANGELOG
 
     * Rename `signTransactionAsync` to `signMessageAsync` for clarity (#465)
 
-## v0.3.0 - _March 18, 2018_
+## v0.3.0 - _March 17, 2018_
 
     * Add `web3Wrapper.takeSnapshotAsync`, `web3Wrapper.revertSnapshotAsync`, `web3Wrapper.mineBlockAsync`, `web3Wrapper.increaseTimeAsync` (#426)
     * Add `web3Wrapper.isZeroExWeb3Wrapper` for runtime instanceOf checks (#426)
     * Add a `getProvider` method (#444)
 
-## v0.2.0 - _March 4, 2018_
+## v0.2.0 - _March 3, 2018_
 
     * Ensure all returned user addresses are lowercase (#373)
     * Add `web3Wrapper.callAsync` (#413)
     * Make `web3Wrapper.estimateGas` accept whole `txData` instead of `data` (#413)
     * Remove `web3Wrapper.getContractInstance` (#413)
 
-## v0.1.12 - _February 9, 2018_
+## v0.1.12 - _February 8, 2018_
 
     * Fix publishing issue where .npmignore was not properly excluding undesired content (#389)
diff --git a/packages/web3-wrapper/package.json b/packages/web3-wrapper/package.json
index 118330707..3ee9631cc 100644
--- a/packages/web3-wrapper/package.json
+++ b/packages/web3-wrapper/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/web3-wrapper",
-    "version": "0.6.1",
+    "version": "0.6.3",
     "description": "Wraps around web3 and gives a nicer interface",
     "main": "lib/src/index.js",
     "types": "lib/src/index.d.ts",
@@ -40,8 +40,8 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/web3-wrapper/README.md",
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.18",
-        "@0xproject/tslint-config": "^0.4.16",
+        "@0xproject/monorepo-scripts": "^0.1.19",
+        "@0xproject/tslint-config": "^0.4.17",
         "@types/lodash": "4.14.104",
         "chai": "^4.0.1",
         "chai-as-promised": "^7.1.0",
@@ -58,9 +58,9 @@
         "typescript": "2.7.1"
     },
     "dependencies": {
-        "@0xproject/types": "^0.6.1",
-        "@0xproject/typescript-typings": "^0.2.0",
-        "@0xproject/utils": "^0.5.2",
+        "@0xproject/types": "^0.6.3",
+        "@0xproject/typescript-typings": "^0.3.1",
+        "@0xproject/utils": "^0.6.1",
         "ethers": "^3.0.15",
         "lodash": "^4.17.4",
         "web3": "^0.20.0"
diff --git a/packages/website/md/docs/order_utils/installation.md b/packages/website/md/docs/order_utils/installation.md
new file mode 100644
index 000000000..68a7cf960
--- /dev/null
+++ b/packages/website/md/docs/order_utils/installation.md
@@ -0,0 +1,17 @@
+**Install**
+
+```bash
+yarn add @0xproject/order-utils
+```
+
+**Import**
+
+```javascript
+import { createSignedOrderAsync } from '@0xproject/order-utils';
+```
+
+or
+
+```javascript
+var createSignedOrderAsync = require('@0xproject/order-utils').createSignedOrderAsync;
+```
diff --git a/packages/website/md/docs/order_utils/introduction.md b/packages/website/md/docs/order_utils/introduction.md
new file mode 100644
index 000000000..d5f3f2925
--- /dev/null
+++ b/packages/website/md/docs/order_utils/introduction.md
@@ -0,0 +1 @@
+Welcome to the [@0xproject/order-utils](https://github.com/0xProject/0x-monorepo/tree/development/packages/order-utils) documentation! Order utils is a set of utils around creating, signing, validating 0x orders.
diff --git a/packages/website/package.json b/packages/website/package.json
index 169231fac..ad84a3eb9 100644
--- a/packages/website/package.json
+++ b/packages/website/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/website",
-    "version": "0.0.28",
+    "version": "0.0.32",
     "private": true,
     "description": "Website and 0x portal dapp",
     "scripts": {
@@ -14,13 +14,13 @@
     "author": "Fabio Berger",
     "license": "Apache-2.0",
     "dependencies": {
-        "0x.js": "^0.36.3",
-        "@0xproject/react-docs": "^0.0.8",
-        "@0xproject/react-shared": "^0.1.3",
-        "@0xproject/subproviders": "^0.9.0",
-        "@0xproject/typescript-typings": "^0.2.0",
-        "@0xproject/utils": "^0.5.2",
-        "@0xproject/web3-wrapper": "^0.6.1",
+        "0x.js": "^0.37.2",
+        "@0xproject/react-docs": "^0.0.11",
+        "@0xproject/react-shared": "^0.1.6",
+        "@0xproject/subproviders": "^0.10.1",
+        "@0xproject/typescript-typings": "^0.3.1",
+        "@0xproject/utils": "^0.6.1",
+        "@0xproject/web3-wrapper": "^0.6.3",
         "accounting": "^0.4.1",
         "basscss": "^8.0.3",
         "blockies": "^0.0.2",
@@ -48,7 +48,7 @@
         "thenby": "^1.2.3",
         "truffle-contract": "2.0.1",
         "web3": "^0.20.0",
-        "web3-provider-engine": "^13.0.1",
+        "web3-provider-engine": "^14.0.4",
         "whatwg-fetch": "^2.0.3",
         "xml-js": "^1.3.2"
     },
@@ -60,7 +60,7 @@
         "@types/material-ui": "0.18.0",
         "@types/node": "^8.0.53",
         "@types/query-string": "^5.1.0",
-        "@types/react": "^16.0.34",
+        "@types/react": "16.3.13",
         "@types/react-copy-to-clipboard": "^4.2.0",
         "@types/react-dom": "^16.0.3",
         "@types/react-redux": "^4.4.37",
diff --git a/packages/website/public/images/landing/project_logos/the_ocean.png b/packages/website/public/images/landing/project_logos/the_ocean.png
index 74678b5d4..0677abc29 100644
--- a/packages/website/public/images/landing/project_logos/the_ocean.png
+++ b/packages/website/public/images/landing/project_logos/the_ocean.png
diff --git a/packages/website/public/images/team/greg.jpeg b/packages/website/public/images/team/greg.jpeg
new file mode 100644
index 000000000..a765e047f
--- /dev/null
+++ b/packages/website/public/images/team/greg.jpeg
diff --git a/packages/website/public/images/team/philippe.png b/packages/website/public/images/team/philippe.png
deleted file mode 100644
index cd43c2754..000000000
--- a/packages/website/public/images/team/philippe.png
+++ /dev/null
diff --git a/packages/website/public/images/team/remco.jpeg b/packages/website/public/images/team/remco.jpeg
new file mode 100644
index 000000000..e87e7bfd6
--- /dev/null
+++ b/packages/website/public/images/team/remco.jpeg
diff --git a/packages/website/translations/chinese.json b/packages/website/translations/chinese.json
index f610bf56c..d37b1abdf 100644
--- a/packages/website/translations/chinese.json
+++ b/packages/website/translations/chinese.json
@@ -66,6 +66,7 @@
     "WHITEPAPER": "白皮书",
     "WIKI": "维基",
     "WEB3_WRAPPER": "Web3Wrapper",
+    "ORDER_UTILS": "Order Utils",
     "FAQ": "FAQ",
     "SMART_CONTRACTS": "0x 智能合约",
     "STANDARD_RELAYER_API": "中继方标准API",
diff --git a/packages/website/translations/english.json b/packages/website/translations/english.json
index 122d445cb..8d7485e9a 100644
--- a/packages/website/translations/english.json
+++ b/packages/website/translations/english.json
@@ -67,6 +67,7 @@
     "WHITEPAPER": "whitepaper",
     "WIKI": "wiki",
     "WEB3_WRAPPER": "Web3Wrapper",
+    "ORDER_UTILS": "Order Utils",
     "FAQ": "FAQ",
     "SMART_CONTRACTS": "0x smart contracts",
     "STANDARD_RELAYER_API": "standard relayer API",
diff --git a/packages/website/translations/korean.json b/packages/website/translations/korean.json
index dd5f19b16..028476d2c 100644
--- a/packages/website/translations/korean.json
+++ b/packages/website/translations/korean.json
@@ -66,6 +66,7 @@
     "WHITEPAPER": "백서",
     "WIKI": "위키",
     "WEB3_WRAPPER": "Web3Wrapper",
+    "ORDER_UTILS": "Order Utils",
     "FAQ": "FAQ",
     "SMART_CONTRACTS": "0x 스마트 계약",
     "STANDARD_RELAYER_API": "Standard Relayer API",
diff --git a/packages/website/translations/russian.json b/packages/website/translations/russian.json
index 5a8e2c539..9254ab1c0 100644
--- a/packages/website/translations/russian.json
+++ b/packages/website/translations/russian.json
@@ -66,6 +66,7 @@
     "WHITEPAPER": "Whitepaper",
     "WIKI": "Вики",
     "WEB3_WRAPPER": "Web3Wrapper",
+    "ORDER_UTILS": "Order Utils",
     "FAQ": "Документация",
     "SMART_CONTRACTS": "0x Смарт-контракты ",
     "STANDARD_RELAYER_API": "standard relayer API",
diff --git a/packages/website/translations/spanish.json b/packages/website/translations/spanish.json
index dd34e805c..eb8f4035c 100644
--- a/packages/website/translations/spanish.json
+++ b/packages/website/translations/spanish.json
@@ -67,6 +67,7 @@
     "WHITEPAPER": "documento técnico",
     "WIKI": "wiki",
     "WEB3_WRAPPER": "Web3Wrapper",
+    "ORDER_UTILS": "Order Utils",
     "FAQ": "preguntas frecuentes",
     "SMART_CONTRACTS": "0x contratos inteligentes",
     "STANDARD_RELAYER_API": "API de transmisión estándar",
diff --git a/packages/website/ts/components/portal/portal.tsx b/packages/website/ts/components/portal/portal.tsx
index bf12c924f..88003a94e 100644
--- a/packages/website/ts/components/portal/portal.tsx
+++ b/packages/website/ts/components/portal/portal.tsx
@@ -9,7 +9,11 @@ import { BlockchainErrDialog } from 'ts/components/dialogs/blockchain_err_dialog
 import { LedgerConfigDialog } from 'ts/components/dialogs/ledger_config_dialog';
 import { PortalDisclaimerDialog } from 'ts/components/dialogs/portal_disclaimer_dialog';
 import { RelayerIndex } from 'ts/components/relayer_index/relayer_index';
+<<<<<<< HEAD
 import { TopBar, TopBarDisplayType } from 'ts/components/top_bar/top_bar';
+=======
+import { TopBar } from 'ts/components/top_bar/top_bar';
+>>>>>>> development
 import { FlashMessage } from 'ts/components/ui/flash_message';
 import { Wallet } from 'ts/components/wallet/wallet';
 import { localStorage } from 'ts/local_storage/local_storage';
@@ -51,7 +55,11 @@ interface PortalState {
 }
 
 const THROTTLE_TIMEOUT = 100;
+<<<<<<< HEAD
 const TOP_BAR_HEIGHT = TopBar.heightForDisplayType(TopBarDisplayType.Expanded);
+=======
+const TOP_BAR_HEIGHT = 60;
+>>>>>>> development
 
 const styles: Styles = {
     root: {
diff --git a/packages/website/ts/components/relayer_index/relayer_grid_tile.tsx b/packages/website/ts/components/relayer_index/relayer_grid_tile.tsx
index 0c4b2841c..0b9b8165e 100644
--- a/packages/website/ts/components/relayer_index/relayer_grid_tile.tsx
+++ b/packages/website/ts/components/relayer_index/relayer_grid_tile.tsx
@@ -12,8 +12,7 @@ export interface RelayerGridTileProps {
     networkId: number;
 }
 
-// TODO: Get top tokens and headerurl from remote
-const headerUrl = '/images/og_image.png';
+// TODO: Get top tokens from remote
 const topTokens = [
     {
         address: '0x1dad4783cf3fe3085c1426157ab175a6119a04ba',
@@ -68,6 +67,9 @@ const styles: Styles = {
         borderBottomLeftRadius: 4,
         borderTopRightRadius: 4,
         borderTopLeftRadius: 4,
+        borderWidth: 1,
+        borderStyle: 'solid',
+        borderColor: colors.walletBorder,
     },
     body: {
         paddingLeft: 6,
@@ -92,24 +94,27 @@ const styles: Styles = {
 };
 
 export const RelayerGridTile: React.StatelessComponent<RelayerGridTileProps> = (props: RelayerGridTileProps) => {
+    const link = props.relayerInfo.appUrl || props.relayerInfo.url;
     return (
-        <GridTile style={styles.root}>
-            <div style={styles.innerDiv}>
-                <img src={headerUrl} style={styles.header} />
-                <div style={styles.body}>
-                    <div className="py1" style={styles.relayerNameLabel}>
-                        {props.relayerInfo.name}
-                    </div>
-                    <div style={styles.dailyTradeVolumeLabel}>{props.relayerInfo.dailyTxnVolume}</div>
-                    <div className="py1" style={styles.subLabel}>
-                        Daily Trade Volume
-                    </div>
-                    <TopTokens tokens={topTokens} networkId={props.networkId} />
-                    <div className="py1" style={styles.subLabel}>
-                        Top tokens
+        <a href={link} target="_blank" style={{ textDecoration: 'none' }}>
+            <GridTile style={styles.root}>
+                <div style={styles.innerDiv}>
+                    <img src={props.relayerInfo.headerImgUrl} style={styles.header} />
+                    <div style={styles.body}>
+                        <div className="py1" style={styles.relayerNameLabel}>
+                            {props.relayerInfo.name}
+                        </div>
+                        <div style={styles.dailyTradeVolumeLabel}>{props.relayerInfo.dailyTxnVolume}</div>
+                        <div className="py1" style={styles.subLabel}>
+                            Daily Trade Volume
+                        </div>
+                        <TopTokens tokens={topTokens} networkId={props.networkId} />
+                        <div className="py1" style={styles.subLabel}>
+                            Top tokens
+                        </div>
                     </div>
                 </div>
-            </div>
-        </GridTile>
+            </GridTile>
+        </a>
     );
 };
diff --git a/packages/website/ts/components/relayer_index/relayer_index.tsx b/packages/website/ts/components/relayer_index/relayer_index.tsx
index 1e92dba85..bc84cf9e8 100644
--- a/packages/website/ts/components/relayer_index/relayer_index.tsx
+++ b/packages/website/ts/components/relayer_index/relayer_index.tsx
@@ -66,7 +66,7 @@ export class RelayerIndex extends React.Component<RelayerIndexProps, RelayerInde
                     >
                         {this.state.relayerInfos.map((relayerInfo: WebsiteBackendRelayerInfo) => (
                             <RelayerGridTile
-                                key={relayerInfo.id}
+                                key={relayerInfo.name}
                                 relayerInfo={relayerInfo}
                                 networkId={this.props.networkId}
                             />
diff --git a/packages/website/ts/components/top_bar/top_bar.tsx b/packages/website/ts/components/top_bar/top_bar.tsx
index 8c842d2a5..2502bea6d 100644
--- a/packages/website/ts/components/top_bar/top_bar.tsx
+++ b/packages/website/ts/components/top_bar/top_bar.tsx
@@ -143,6 +143,12 @@ export class TopBar extends React.Component<TopBarProps, TopBarState> {
                     primaryText={this.props.translate.get(Key.Web3Wrapper, Deco.CapWords)}
                 />
             </Link>,
+            <Link key="subMenuItem-order-utils" to={WebsitePaths.OrderUtils} className="text-decoration-none">
+                <MenuItem
+                    style={{ fontSize: styles.menuItem.fontSize }}
+                    primaryText={this.props.translate.get(Key.OrderUtils, Deco.CapWords)}
+                />
+            </Link>,
             <Link key="subMenuItem-deployer" to={WebsitePaths.Deployer} className="text-decoration-none">
                 <MenuItem
                     style={{ fontSize: styles.menuItem.fontSize }}
@@ -199,7 +205,7 @@ export class TopBar extends React.Component<TopBarProps, TopBarState> {
         return (
             <div style={{ ...styles.topBar, ...bottomBorderStyle, ...this.props.style, ...{ height } }} className="pb1">
                 <div className={parentClassNames}>
-                    <div className="col col-2 sm-pl2 md-pl2 lg-pl0" style={{ paddingTop: 15 }}>
+                    <div className="col col-2 sm-pl1 md-pl2 lg-pl0" style={{ paddingTop: 15 }}>
                         <Link to={`${WebsitePaths.Home}`} className="text-decoration-none">
                             <img src={logoUrl} height="30" />
                         </Link>
diff --git a/packages/website/ts/components/ui/input_label.tsx b/packages/website/ts/components/ui/input_label.tsx
index 6a3f26155..8137c0db6 100644
--- a/packages/website/ts/components/ui/input_label.tsx
+++ b/packages/website/ts/components/ui/input_label.tsx
@@ -17,7 +17,7 @@ const styles = {
         userSelect: 'none',
         width: 240,
         zIndex: 1,
-    },
+    } as React.CSSProperties,
 };
 
 export const InputLabel = (props: InputLabelProps) => {
diff --git a/packages/website/ts/components/wallet/wallet.tsx b/packages/website/ts/components/wallet/wallet.tsx
index d1ae38550..057c712e5 100644
--- a/packages/website/ts/components/wallet/wallet.tsx
+++ b/packages/website/ts/components/wallet/wallet.tsx
@@ -461,16 +461,16 @@ export class Wallet extends React.Component<WalletProps, WalletState> {
             );
             balanceAndAllowanceTupleByAddress[tokenAddress] = balanceAndAllowanceTuple;
         }
-        const pricesByAddress = await this._getPricesByAddressAsync(tokenAddresses);
+        const priceByAddress = await this._getPriceByAddressAsync(tokenAddresses);
         const trackedTokenStateByAddress = _.reduce(
             tokenAddresses,
             (acc, address) => {
                 const [balance, allowance] = balanceAndAllowanceTupleByAddress[address];
-                const price = pricesByAddress[address];
+                const priceIfExists = _.get(priceByAddress, address);
                 acc[address] = {
                     balance,
                     allowance,
-                    price,
+                    price: priceIfExists,
                     isLoaded: true,
                 };
                 return acc;
@@ -487,16 +487,29 @@ export class Wallet extends React.Component<WalletProps, WalletState> {
     private async _refetchTokenStateAsync(tokenAddress: string) {
         await this._fetchBalancesAndAllowancesAsync([tokenAddress]);
     }
-    private async _getPricesByAddressAsync(tokenAddresses: string[]): Promise<ItemByAddress<BigNumber>> {
+    private async _getPriceByAddressAsync(tokenAddresses: string[]): Promise<ItemByAddress<BigNumber>> {
         if (_.isEmpty(tokenAddresses)) {
             return {};
         }
+        // for each input token address, search for the corresponding symbol in this.props.tokenByAddress, if it exists
+        // create a mapping from existing symbols -> address
+        const tokenAddressBySymbol: { [symbol: string]: string } = {};
+        _.each(tokenAddresses, address => {
+            const tokenIfExists = _.get(this.props.tokenByAddress, address);
+            if (!_.isUndefined(tokenIfExists)) {
+                const symbol = tokenIfExists.symbol;
+                tokenAddressBySymbol[symbol] = address;
+            }
+        });
+        const tokenSymbols = _.keys(tokenAddressBySymbol);
         try {
-            const websiteBackendPriceInfos = await backendClient.getPriceInfosAsync(tokenAddresses);
-            const addresses = _.map(websiteBackendPriceInfos, info => info.address);
-            const prices = _.map(websiteBackendPriceInfos, info => new BigNumber(info.price));
-            const pricesByAddress = _.zipObject(addresses, prices);
-            return pricesByAddress;
+            const priceBySymbol = await backendClient.getPriceInfoAsync(tokenSymbols);
+            const priceByAddress = _.mapKeys(priceBySymbol, (value, symbol) => _.get(tokenAddressBySymbol, symbol));
+            const result = _.mapValues(priceByAddress, price => {
+                const priceBigNumber = new BigNumber(price);
+                return priceBigNumber;
+            });
+            return result;
         } catch (err) {
             return {};
         }
diff --git a/packages/website/ts/containers/order_utils_documentation.ts b/packages/website/ts/containers/order_utils_documentation.ts
new file mode 100644
index 000000000..64aa7300f
--- /dev/null
+++ b/packages/website/ts/containers/order_utils_documentation.ts
@@ -0,0 +1,99 @@
+import { constants as docConstants, DocsInfo, DocsInfoConfig, SupportedDocJson } from '@0xproject/react-docs';
+import * as _ from 'lodash';
+import * as React from 'react';
+import { connect } from 'react-redux';
+import { Dispatch } from 'redux';
+import { DocPage as DocPageComponent, DocPageProps } from 'ts/pages/documentation/doc_page';
+import { Dispatcher } from 'ts/redux/dispatcher';
+import { State } from 'ts/redux/reducer';
+import { DocPackages, Environments, WebsitePaths } from 'ts/types';
+import { configs } from 'ts/utils/configs';
+import { constants } from 'ts/utils/constants';
+import { Translate } from 'ts/utils/translate';
+
+/* tslint:disable:no-var-requires */
+const IntroMarkdown = require('md/docs/order_utils/introduction');
+const InstallationMarkdown = require('md/docs/order_utils/installation');
+/* tslint:enable:no-var-requires */
+
+const docSections = {
+    introduction: 'introduction',
+    installation: 'installation',
+    usage: 'usage',
+    types: 'types',
+};
+
+const docsInfoConfig: DocsInfoConfig = {
+    id: DocPackages.OrderUtils,
+    type: SupportedDocJson.TypeDoc,
+    displayName: 'Order utils',
+    packageUrl: 'https://github.com/0xProject/0x-monorepo',
+    menu: {
+        introduction: [docSections.introduction],
+        install: [docSections.installation],
+        usage: [docSections.usage],
+        types: [docSections.types],
+    },
+    sectionNameToMarkdown: {
+        [docSections.introduction]: IntroMarkdown,
+        [docSections.installation]: InstallationMarkdown,
+    },
+    sectionNameToModulePath: {
+        [docSections.usage]: [
+            '"order-utils/src/order_hash"',
+            '"order-utils/src/signature_utils"',
+            '"order-utils/src/order_factory"',
+            '"order-utils/src/salt"',
+            '"order-utils/src/assert"',
+            '"order-utils/src/constants"',
+        ],
+        [docSections.types]: ['"order-utils/src/types"', '"types/src/index"'],
+    },
+    menuSubsectionToVersionWhenIntroduced: {},
+    sections: docSections,
+    visibleConstructors: [],
+    typeConfigs: {
+        // Note: This needs to be kept in sync with the types exported in index.ts. Unfortunately there is
+        // currently no way to extract the re-exported types from index.ts via TypeDoc :(
+        publicTypes: [
+            'OrderError',
+            'Order',
+            'SignedOrder',
+            'ECSignature',
+            'Provider',
+            'JSONRPCRequestPayload',
+            'JSONRPCResponsePayload',
+            'JSONRPCErrorCallback',
+        ],
+        typeNameToExternalLink: {
+            BigNumber: constants.URL_BIGNUMBERJS_GITHUB,
+        },
+    },
+};
+const docsInfo = new DocsInfo(docsInfoConfig);
+
+interface ConnectedState {
+    docsVersion: string;
+    availableDocVersions: string[];
+    docsInfo: DocsInfo;
+    translate: Translate;
+}
+
+interface ConnectedDispatch {
+    dispatcher: Dispatcher;
+}
+
+const mapStateToProps = (state: State, ownProps: DocPageProps): ConnectedState => ({
+    docsVersion: state.docsVersion,
+    availableDocVersions: state.availableDocVersions,
+    translate: state.translate,
+    docsInfo,
+});
+
+const mapDispatchToProps = (dispatch: Dispatch<State>): ConnectedDispatch => ({
+    dispatcher: new Dispatcher(dispatch),
+});
+
+export const Documentation: React.ComponentClass<DocPageProps> = connect(mapStateToProps, mapDispatchToProps)(
+    DocPageComponent,
+);
diff --git a/packages/website/ts/index.tsx b/packages/website/ts/index.tsx
index 7b7a7eb2e..1b1255214 100644
--- a/packages/website/ts/index.tsx
+++ b/packages/website/ts/index.tsx
@@ -66,6 +66,9 @@ const LazySolCovDocumentation = createLazyComponent('Documentation', async () =>
 const LazySubprovidersDocumentation = createLazyComponent('Documentation', async () =>
     System.import<any>(/* webpackChunkName: "subproviderDocs" */ 'ts/containers/subproviders_documentation'),
 );
+const LazyOrderUtilsDocumentation = createLazyComponent('Documentation', async () =>
+    System.import<any>(/* webpackChunkName: "orderUtilsDocs" */ 'ts/containers/order_utils_documentation'),
+);
 
 analytics.init();
 // tslint:disable-next-line:no-floating-promises
@@ -99,6 +102,10 @@ render(
                                 component={LazySubprovidersDocumentation}
                             />
                             <Route
+                                path={`${WebsitePaths.OrderUtils}/:version?`}
+                                component={LazyOrderUtilsDocumentation}
+                            />
+                            <Route
                                 path={`${WebsitePaths.Web3Wrapper}/:version?`}
                                 component={LazyWeb3WrapperDocumentation}
                             />
diff --git a/packages/website/ts/pages/about/about.tsx b/packages/website/ts/pages/about/about.tsx
index 97be59526..d78cca703 100644
--- a/packages/website/ts/pages/about/about.tsx
+++ b/packages/website/ts/pages/about/about.tsx
@@ -113,7 +113,7 @@ const teamRow4: ProfileInfo[] = [
     {
         name: 'Blake Henderson',
         title: 'Operations Associate',
-        description: `Operations and Analytics. Previously analytics at LinkedIn. Economics at UC San Diego. `,
+        description: `Operations and Analytics. Previously analytics at LinkedIn. Economics at UC San Diego.`,
         image: '/images/team/blake.jpg',
         linkedIn: 'https://www.linkedin.com/in/blakerhenderson/',
         github: '',
@@ -130,6 +130,27 @@ const teamRow4: ProfileInfo[] = [
     },
 ];
 
+const teamRow5: ProfileInfo[] = [
+    {
+        name: 'Greg Hysen',
+        title: 'Blockchain Engineer',
+        description: `Smart contract R&D. Previously lead distributed systems engineer at Hivemapper. Computer Science at University of Waterloo.`,
+        image: '/images/team/greg.jpeg',
+        linkedIn: 'https://www.linkedin.com/in/gregory-hysen-71741463/',
+        github: 'https://github.com/hysz',
+        medium: '',
+    },
+    {
+        name: 'Remco Bloemen',
+        title: 'Technical Fellow',
+        description: `Previously cofounder at Neufund and Coblue. Part III at Cambridge. PhD dropout at Twente Business School.`,
+        image: '/images/team/remco.jpeg',
+        linkedIn: 'https://www.linkedin.com/in/remcobloemen/',
+        github: 'http://github.com/recmo',
+        medium: '',
+    },
+];
+
 const advisors: ProfileInfo[] = [
     {
         name: 'Fred Ehrsam',
@@ -223,6 +244,7 @@ export class About extends React.Component<AboutProps, AboutState> {
                         <div className="clearfix">{this._renderProfiles(teamRow2)}</div>
                         <div className="clearfix">{this._renderProfiles(teamRow3)}</div>
                         <div className="clearfix">{this._renderProfiles(teamRow4)}</div>
+                        <div className="clearfix">{this._renderProfiles(teamRow5)}</div>
                     </div>
                     <div className="pt3 pb2">
                         <div
diff --git a/packages/website/ts/pages/documentation/doc_page.tsx b/packages/website/ts/pages/documentation/doc_page.tsx
index aca20447b..9feb27dac 100644
--- a/packages/website/ts/pages/documentation/doc_page.tsx
+++ b/packages/website/ts/pages/documentation/doc_page.tsx
@@ -34,6 +34,7 @@ const docIdToSubpackageName: { [id: string]: string } = {
     [DocPackages.JSONSchemas]: 'json-schemas',
     [DocPackages.SolCov]: 'sol-cov',
     [DocPackages.Subproviders]: 'subproviders',
+    [DocPackages.OrderUtils]: 'order-utils',
 };
 
 export interface DocPageProps {
diff --git a/packages/website/ts/pages/landing/landing.tsx b/packages/website/ts/pages/landing/landing.tsx
index f961220fd..a63c24fb7 100644
--- a/packages/website/ts/pages/landing/landing.tsx
+++ b/packages/website/ts/pages/landing/landing.tsx
@@ -37,6 +37,8 @@ interface Project {
 }
 
 const THROTTLE_TIMEOUT = 100;
+const WHATS_NEW_TITLE = '18 ideas for 0x relayers in 2018';
+const WHATS_NEW_URL = 'https://blog.0xproject.com/18-ideas-for-0x-relayers-in-2018-80a1498b955f';
 
 const relayersAndDappProjects: Project[] = [
     {
@@ -233,6 +235,7 @@ export class Landing extends React.Component<LandingProps, LandingState> {
         return (
             <div className="clearfix py4" style={{ backgroundColor: colors.heroGrey }}>
                 <div className="mx-auto max-width-4 clearfix">
+                    {this._renderWhatsNew()}
                     <div className="lg-pt4 md-pt4 sm-pt2 lg-pb4 md-pb4 lg-my4 md-my4 sm-mt2 sm-mb4 clearfix">
                         <div className="col lg-col-5 md-col-5 col-12 sm-center">
                             <img src="/images/landing/hero_chip_image.png" height={isSmallScreen ? 300 : 395} />
@@ -302,6 +305,28 @@ export class Landing extends React.Component<LandingProps, LandingState> {
             </div>
         );
     }
+    private _renderWhatsNew() {
+        return (
+            <div className="sm-center sm-px1">
+                <a href={WHATS_NEW_URL} target="_blank" className="inline-block text-decoration-none">
+                    <div className="flex sm-pl0 md-pl2 lg-pl0" style={{ fontFamily: 'Roboto Mono', fontWeight: 600 }}>
+                        <div
+                            className="mr1 px1"
+                            style={{
+                                backgroundColor: colors.lightTurquois,
+                                borderRadius: 3,
+                                color: colors.heroGrey,
+                                height: 23,
+                            }}
+                        >
+                            New
+                        </div>
+                        <div style={{ color: colors.darkGrey }}>{WHATS_NEW_TITLE}</div>
+                    </div>
+                </a>
+            </div>
+        );
+    }
     private _renderProjects(projects: Project[], title: string, backgroundColor: string, isTitleCenter: boolean) {
         const isSmallScreen = this.state.screenWidth === ScreenWidths.Sm;
         const projectList = _.map(projects, (project: Project, i: number) => {
diff --git a/packages/website/ts/pages/wiki/wiki.tsx b/packages/website/ts/pages/wiki/wiki.tsx
index 7ed2b750d..edca5834d 100644
--- a/packages/website/ts/pages/wiki/wiki.tsx
+++ b/packages/website/ts/pages/wiki/wiki.tsx
@@ -47,7 +47,7 @@ const styles: Styles = {
         left: 0,
         bottom: 0,
         right: 0,
-        overflowZ: 'hidden',
+        overflow: 'hidden',
         height: `calc(100vh - ${TOP_BAR_HEIGHT}px)`,
         WebkitOverflowScrolling: 'touch',
     },
diff --git a/packages/website/ts/types.ts b/packages/website/ts/types.ts
index 2544e6735..2754075a7 100644
--- a/packages/website/ts/types.ts
+++ b/packages/website/ts/types.ts
@@ -361,6 +361,7 @@ export enum WebsitePaths {
     JSONSchemas = '/docs/json-schemas',
     SolCov = '/docs/sol-cov',
     Subproviders = '/docs/subproviders',
+    OrderUtils = '/docs/order-utils',
     Jobs = '/jobs',
 }
 
@@ -373,6 +374,7 @@ export enum DocPackages {
     JSONSchemas = 'JSON_SCHEMAS',
     SolCov = 'SOL_COV',
     Subproviders = 'SUBPROVIDERS',
+    OrderUtils = 'ORDER_UTILS',
 }
 
 export enum Key {
@@ -431,6 +433,7 @@ export enum Key {
     Whitepaper = 'WHITEPAPER',
     Wiki = 'WIKI',
     Web3Wrapper = 'WEB3_WRAPPER',
+    OrderUtils = 'ORDER_UTILS',
     And = 'AND',
     Faq = 'FAQ',
     SmartContracts = 'SMART_CONTRACTS',
@@ -500,17 +503,17 @@ export interface TokenState {
     price?: BigNumber;
 }
 
-// TODO: Add topTokens and headerUrl properties once available from backend
+// TODO: Add topTokens property once available from backend
 export interface WebsiteBackendRelayerInfo {
-    id: string;
     name: string;
     dailyTxnVolume: string;
     url: string;
+    appUrl?: string;
+    headerImgUrl: string;
 }
 
 export interface WebsiteBackendPriceInfo {
-    price: string;
-    address: string;
+    [symbol: string]: string;
 }
 
 export interface WebsiteBackendGasInfo {
diff --git a/packages/website/ts/utils/backend_client.ts b/packages/website/ts/utils/backend_client.ts
index fdbb3e03a..63e06fda7 100644
--- a/packages/website/ts/utils/backend_client.ts
+++ b/packages/website/ts/utils/backend_client.ts
@@ -1,16 +1,8 @@
-import { BigNumber, logUtils } from '@0xproject/utils';
 import * as _ from 'lodash';
-import * as queryString from 'query-string';
 
-import {
-    ArticlesBySection,
-    ItemByAddress,
-    WebsiteBackendGasInfo,
-    WebsiteBackendPriceInfo,
-    WebsiteBackendRelayerInfo,
-} from 'ts/types';
+import { ArticlesBySection, WebsiteBackendGasInfo, WebsiteBackendPriceInfo, WebsiteBackendRelayerInfo } from 'ts/types';
 import { configs } from 'ts/utils/configs';
-import { errorReporter } from 'ts/utils/error_reporter';
+import { fetchUtils } from 'ts/utils/fetch_utils';
 
 const ETH_GAS_STATION_ENDPOINT = '/eth_gas_station';
 const PRICES_ENDPOINT = '/prices';
@@ -19,52 +11,26 @@ const WIKI_ENDPOINT = '/wiki';
 
 export const backendClient = {
     async getGasInfoAsync(): Promise<WebsiteBackendGasInfo> {
-        const result = await requestAsync(ETH_GAS_STATION_ENDPOINT);
+        const result = await fetchUtils.requestAsync(configs.BACKEND_BASE_URL, ETH_GAS_STATION_ENDPOINT);
         return result;
     },
-    async getPriceInfosAsync(tokenAddresses: string[]): Promise<WebsiteBackendPriceInfo[]> {
-        if (_.isEmpty(tokenAddresses)) {
-            return [];
+    async getPriceInfoAsync(tokenSymbols: string[]): Promise<WebsiteBackendPriceInfo> {
+        if (_.isEmpty(tokenSymbols)) {
+            return {};
         }
-        const joinedTokenAddresses = tokenAddresses.join(',');
+        const joinedTokenSymbols = tokenSymbols.join(',');
         const queryParams = {
-            tokens: joinedTokenAddresses,
+            tokens: joinedTokenSymbols,
         };
-        const result = await requestAsync(PRICES_ENDPOINT, queryParams);
+        const result = await fetchUtils.requestAsync(configs.BACKEND_BASE_URL, PRICES_ENDPOINT, queryParams);
         return result;
     },
     async getRelayerInfosAsync(): Promise<WebsiteBackendRelayerInfo[]> {
-        const result = await requestAsync(RELAYERS_ENDPOINT);
+        const result = await fetchUtils.requestAsync(configs.BACKEND_BASE_URL, RELAYERS_ENDPOINT);
         return result;
     },
     async getWikiArticlesBySectionAsync(): Promise<ArticlesBySection> {
-        const result = await requestAsync(WIKI_ENDPOINT);
+        const result = await fetchUtils.requestAsync(configs.BACKEND_BASE_URL, WIKI_ENDPOINT);
         return result;
     },
 };
-
-async function requestAsync(endpoint: string, queryParams?: object): Promise<any> {
-    const query = queryStringFromQueryParams(queryParams);
-    const url = `${configs.BACKEND_BASE_URL}${endpoint}${query}`;
-    const response = await fetch(url);
-    if (response.status !== 200) {
-        const errorText = `Error requesting url: ${url}, ${response.status}: ${response.statusText}`;
-        logUtils.log(errorText);
-        const error = Error(errorText);
-        // tslint:disable-next-line:no-floating-promises
-        errorReporter.reportAsync(error);
-        throw error;
-    }
-    const result = await response.json();
-    return result;
-}
-
-function queryStringFromQueryParams(queryParams?: object): string {
-    // if params are undefined or empty, return an empty string
-    if (_.isUndefined(queryParams) || _.isEmpty(queryParams)) {
-        return '';
-    }
-    // stringify the formatted object
-    const stringifiedParams = queryString.stringify(queryParams);
-    return `?${stringifiedParams}`;
-}
diff --git a/packages/website/ts/utils/fetch_utils.ts b/packages/website/ts/utils/fetch_utils.ts
new file mode 100644
index 000000000..d2e902db5
--- /dev/null
+++ b/packages/website/ts/utils/fetch_utils.ts
@@ -0,0 +1,33 @@
+import { logUtils } from '@0xproject/utils';
+import * as _ from 'lodash';
+import * as queryString from 'query-string';
+
+import { errorReporter } from 'ts/utils/error_reporter';
+
+export const fetchUtils = {
+    async requestAsync(baseUrl: string, path: string, queryParams?: object): Promise<any> {
+        const query = queryStringFromQueryParams(queryParams);
+        const url = `${baseUrl}${path}${query}`;
+        const response = await fetch(url);
+        if (response.status !== 200) {
+            const errorText = `Error requesting url: ${url}, ${response.status}: ${response.statusText}`;
+            logUtils.log(errorText);
+            const error = Error(errorText);
+            // tslint:disable-next-line:no-floating-promises
+            errorReporter.reportAsync(error);
+            throw error;
+        }
+        const result = await response.json();
+        return result;
+    },
+};
+
+function queryStringFromQueryParams(queryParams?: object): string {
+    // if params are undefined or empty, return an empty string
+    if (_.isUndefined(queryParams) || _.isEmpty(queryParams)) {
+        return '';
+    }
+    // stringify the formatted object
+    const stringifiedParams = queryString.stringify(queryParams);
+    return `?${stringifiedParams}`;
+}
diff --git a/packages/website/ts/utils/utils.ts b/packages/website/ts/utils/utils.ts
index 53d60b3ce..0d77b9e72 100644
--- a/packages/website/ts/utils/utils.ts
+++ b/packages/website/ts/utils/utils.ts
@@ -1,4 +1,5 @@
 import { ECSignature, ExchangeContractErrs, ZeroEx, ZeroExError } from '0x.js';
+import { OrderError } from '@0xproject/order-utils';
 import { constants as sharedConstants, EtherscanLinkSuffixes, Networks } from '@0xproject/react-shared';
 import { Provider } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
@@ -202,7 +203,7 @@ export const utils = {
             [ZeroExError.ZRXContractDoesNotExist]: 'ZRX contract does not exist',
             [ZeroExError.UnhandledError]: 'Unhandled error occured',
             [ZeroExError.UserHasNoAssociatedAddress]: 'User has no addresses available',
-            [ZeroExError.InvalidSignature]: 'Order signature is not valid',
+            [OrderError.InvalidSignature]: 'Order signature is not valid',
             [ZeroExError.ContractNotDeployedOnNetwork]: 'Contract is not deployed on the detected network',
             [ZeroExError.InvalidJump]: 'Invalid jump occured while executing the transaction',
             [ZeroExError.OutOfGas]: 'Transaction ran out of gas',
diff --git a/yarn.lock b/yarn.lock
index be72ead11..a10e3cea1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -47,6 +47,26 @@
     "@0xproject/types" "^0.5.0"
     bignumber.js "~4.1.0"
 
+"@0xproject/typescript-typings@^0.2.0":
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/@0xproject/typescript-typings/-/typescript-typings-0.2.0.tgz#53590e6866fde0f0bd3584b83e1211dabe9cd530"
+  dependencies:
+    "@0xproject/types" "^0.6.1"
+    bignumber.js "~4.1.0"
+
+"@0xproject/utils@^0.5.0":
+  version "0.5.2"
+  resolved "https://registry.yarnpkg.com/@0xproject/utils/-/utils-0.5.2.tgz#02ce0a920437db0a15d059e8c6c70fa33e9c3860"
+  dependencies:
+    "@0xproject/types" "^0.6.1"
+    "@0xproject/typescript-typings" "^0.2.0"
+    "@types/node" "^8.0.53"
+    bignumber.js "~4.1.0"
+    ethers-contracts "^2.2.1"
+    js-sha3 "^0.7.0"
+    lodash "^4.17.4"
+    web3 "^0.20.0"
+
 "@0xproject/web3-wrapper@^0.5.0":
   version "0.5.0"
   resolved "https://registry.yarnpkg.com/@0xproject/web3-wrapper/-/web3-wrapper-0.5.0.tgz#99a1acea60a5c3163ac0be28f4c0577c3d43dec4"
@@ -330,9 +350,11 @@
   version "0.0.30"
   resolved "https://registry.yarnpkg.com/@types/react-tap-event-plugin/-/react-tap-event-plugin-0.0.30.tgz#123f35080412f489b6770c5a65c159ff96654cb5"
 
-"@types/react@*", "@types/react@^16.0.34":
-  version "16.0.41"
-  resolved "https://registry.yarnpkg.com/@types/react/-/react-16.0.41.tgz#72146737f4d439dc95a53315de4bfb43ac8542ca"
+"@types/react@*", "@types/react@16.3.13":
+  version "16.3.13"
+  resolved "https://registry.yarnpkg.com/@types/react/-/react-16.3.13.tgz#47d466462b774556c1174ea0eda22c0578643362"
+  dependencies:
+    csstype "^2.2.0"
 
 "@types/redux@^3.6.0":
   version "3.6.0"
@@ -1313,6 +1335,12 @@ babylon@^6.1.21, babylon@^6.18.0:
   version "6.18.0"
   resolved "https://registry.yarnpkg.com/babylon/-/babylon-6.18.0.tgz#af2f3b88fa6f5c1e4c634d1a0f8eac4f55b395e3"
 
+backoff@^2.5.0:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/backoff/-/backoff-2.5.0.tgz#f616eda9d3e4b66b8ca7fca79f695722c5f8e26f"
+  dependencies:
+    precond "0.2"
+
 bail@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/bail/-/bail-1.0.2.tgz#f7d6c1731630a9f9f0d4d35ed1f962e2074a1764"
@@ -2308,7 +2336,7 @@ concat-map@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
 
-concat-stream@^1.4.10, concat-stream@^1.5.0:
+concat-stream@^1.4.10, concat-stream@^1.5.0, concat-stream@^1.5.1:
   version "1.6.2"
   resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.2.tgz#904bdf194cd3122fc675c77fc4ac3d4ff0fd1a34"
   dependencies:
@@ -2631,6 +2659,13 @@ create-react-class@^15.5.2, create-react-class@^15.6.0:
     loose-envify "^1.3.1"
     object-assign "^4.1.1"
 
+cross-fetch@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/cross-fetch/-/cross-fetch-2.1.0.tgz#7d4ea7e10a4f3bb73d5c2f0a3791ec3752d39b50"
+  dependencies:
+    node-fetch "2.1.1"
+    whatwg-fetch "2.0.3"
+
 cross-spawn@^4:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-4.0.2.tgz#7b9247621c23adfdd3856004a823cbe397424d41"
@@ -2794,6 +2829,10 @@ csso@~2.3.1:
     clap "^1.0.9"
     source-map "^0.5.3"
 
+csstype@^2.2.0:
+  version "2.4.2"
+  resolved "https://registry.yarnpkg.com/csstype/-/csstype-2.4.2.tgz#158e36c69566bf968da63d0ba14eda1c20e8643a"
+
 csv-parse@1.2.4:
   version "1.2.4"
   resolved "https://registry.yarnpkg.com/csv-parse/-/csv-parse-1.2.4.tgz#cbf676e355226625888c6432400b83f07e75cc2e"
@@ -3515,7 +3554,7 @@ etag@~1.8.1:
   version "1.8.1"
   resolved "https://registry.yarnpkg.com/etag/-/etag-1.8.1.tgz#41ae2eeb65efa62268aebfea83ac7d79299b0887"
 
-eth-block-tracker@^2.2.2:
+eth-block-tracker@^2.2.2, eth-block-tracker@^2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/eth-block-tracker/-/eth-block-tracker-2.3.0.tgz#4cb782c8ef8fde2f5dc894921ae1f5c1077c35a4"
   dependencies:
@@ -3528,6 +3567,34 @@ eth-block-tracker@^2.2.2:
     pify "^2.3.0"
     tape "^4.6.3"
 
+eth-json-rpc-infura@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/eth-json-rpc-infura/-/eth-json-rpc-infura-3.1.0.tgz#01b955a04d1a827b14c6cdc8a78b3a025d06a183"
+  dependencies:
+    cross-fetch "^2.1.0"
+    eth-json-rpc-middleware "^1.5.0"
+    json-rpc-engine "^3.4.0"
+    json-rpc-error "^2.0.0"
+    tape "^4.8.0"
+
+eth-json-rpc-middleware@^1.5.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/eth-json-rpc-middleware/-/eth-json-rpc-middleware-1.6.0.tgz#5c9d4c28f745ccb01630f0300ba945f4bef9593f"
+  dependencies:
+    async "^2.5.0"
+    eth-query "^2.1.2"
+    eth-tx-summary "^3.1.2"
+    ethereumjs-block "^1.6.0"
+    ethereumjs-tx "^1.3.3"
+    ethereumjs-util "^5.1.2"
+    ethereumjs-vm "^2.1.0"
+    fetch-ponyfill "^4.0.0"
+    json-rpc-engine "^3.6.0"
+    json-rpc-error "^2.0.0"
+    json-stable-stringify "^1.0.1"
+    promise-to-callback "^1.0.0"
+    tape "^4.6.3"
+
 eth-lib@0.1.27, eth-lib@^0.1.26:
   version "0.1.27"
   resolved "https://registry.yarnpkg.com/eth-lib/-/eth-lib-0.1.27.tgz#f0b0fd144f865d2d6bf8257a40004f2e75ca1dd6"
@@ -3548,7 +3615,7 @@ eth-lib@0.2.7:
     elliptic "^6.4.0"
     xhr-request-promise "^0.1.2"
 
-eth-query@^2.1.0:
+eth-query@^2.0.2, eth-query@^2.1.0, eth-query@^2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/eth-query/-/eth-query-2.1.2.tgz#d6741d9000106b51510c72db92d6365456a6da5e"
   dependencies:
@@ -3562,6 +3629,24 @@ eth-sig-util@^1.4.2:
     ethereumjs-abi "git+https://github.com/ethereumjs/ethereumjs-abi.git"
     ethereumjs-util "^5.1.1"
 
+eth-tx-summary@^3.1.2:
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/eth-tx-summary/-/eth-tx-summary-3.2.1.tgz#0c2d5e4c57d2511614f85b9b583c32fa2924166c"
+  dependencies:
+    async "^2.1.2"
+    bn.js "^4.11.8"
+    clone "^2.0.0"
+    concat-stream "^1.5.1"
+    end-of-stream "^1.1.0"
+    eth-query "^2.0.2"
+    ethereumjs-block "^1.4.1"
+    ethereumjs-tx "^1.1.1"
+    ethereumjs-util "^5.0.1"
+    ethereumjs-vm "^2.3.4"
+    through2 "^2.0.3"
+    treeify "^1.0.1"
+    web3-provider-engine "^13.3.2"
+
 ethereum-common@0.0.16:
   version "0.0.16"
   resolved "https://registry.yarnpkg.com/ethereum-common/-/ethereum-common-0.0.16.tgz#9a1e169ead34ab75e089f50ca512bfd0fbd12655"
@@ -3595,7 +3680,7 @@ ethereumjs-account@^2.0.3, ethereumjs-account@~2.0.4:
     ethereumjs-util "^4.0.1"
     rlp "^2.0.0"
 
-ethereumjs-block@^1.2.2, ethereumjs-block@~1.7.0:
+ethereumjs-block@^1.2.2, ethereumjs-block@^1.4.1, ethereumjs-block@^1.6.0, ethereumjs-block@~1.7.0:
   version "1.7.1"
   resolved "https://registry.yarnpkg.com/ethereumjs-block/-/ethereumjs-block-1.7.1.tgz#78b88e6cc56de29a6b4884ee75379b6860333c3f"
   dependencies:
@@ -3629,7 +3714,7 @@ ethereumjs-testrpc@^6.0.3:
   dependencies:
     webpack "^3.0.0"
 
-ethereumjs-tx@^1.0.0, ethereumjs-tx@^1.2.0, ethereumjs-tx@^1.2.2, ethereumjs-tx@^1.3.0, ethereumjs-tx@^1.3.3:
+ethereumjs-tx@^1.0.0, ethereumjs-tx@^1.1.1, ethereumjs-tx@^1.2.0, ethereumjs-tx@^1.2.2, ethereumjs-tx@^1.3.0, ethereumjs-tx@^1.3.3:
   version "1.3.4"
   resolved "https://registry.yarnpkg.com/ethereumjs-tx/-/ethereumjs-tx-1.3.4.tgz#c2304912f6c07af03237ad8675ac036e290dad48"
   dependencies:
@@ -3646,7 +3731,7 @@ ethereumjs-util@^4.0.1, ethereumjs-util@^4.3.0, ethereumjs-util@^4.4.0:
     rlp "^2.0.0"
     secp256k1 "^3.0.1"
 
-ethereumjs-util@^5.0.0, ethereumjs-util@^5.1.1, ethereumjs-util@^5.1.3, ethereumjs-util@^5.1.5:
+ethereumjs-util@^5.0.0, ethereumjs-util@^5.0.1, ethereumjs-util@^5.1.1, ethereumjs-util@^5.1.2, ethereumjs-util@^5.1.3, ethereumjs-util@^5.1.5:
   version "5.1.5"
   resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-5.1.5.tgz#2f02575852627d45622426f25ee4a0b5f377f27a"
   dependencies:
@@ -3674,6 +3759,22 @@ ethereumjs-vm@2.3.3, ethereumjs-vm@^2.0.2:
     rustbn.js "~0.1.1"
     safe-buffer "^5.1.1"
 
+ethereumjs-vm@^2.1.0, ethereumjs-vm@^2.3.4:
+  version "2.3.4"
+  resolved "https://registry.yarnpkg.com/ethereumjs-vm/-/ethereumjs-vm-2.3.4.tgz#f635d7cb047571a1840a6e9a74d29de4488f8ad6"
+  dependencies:
+    async "^2.1.2"
+    async-eventemitter "^0.2.2"
+    ethereum-common "0.2.0"
+    ethereumjs-account "^2.0.3"
+    ethereumjs-block "~1.7.0"
+    ethereumjs-util "^5.1.3"
+    fake-merkle-patricia-tree "^1.0.1"
+    functional-red-black-tree "^1.0.1"
+    merkle-patricia-tree "^2.1.2"
+    rustbn.js "~0.1.1"
+    safe-buffer "^5.1.1"
+
 ethereumjs-wallet@~0.6.0:
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/ethereumjs-wallet/-/ethereumjs-wallet-0.6.0.tgz#82763b1697ee7a796be7155da9dfb49b2f98cfdb"
@@ -5853,7 +5954,7 @@ json-parse-better-errors@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/json-parse-better-errors/-/json-parse-better-errors-1.0.1.tgz#50183cd1b2d25275de069e9e71b467ac9eab973a"
 
-json-rpc-engine@^3.6.0:
+json-rpc-engine@^3.4.0, json-rpc-engine@^3.6.0:
   version "3.6.1"
   resolved "https://registry.yarnpkg.com/json-rpc-engine/-/json-rpc-engine-3.6.1.tgz#f53084726dc6dedeead0e2c457eeb997135f1e25"
   dependencies:
@@ -7097,6 +7198,10 @@ node-abi@^2.2.0:
   dependencies:
     semver "^5.4.1"
 
+node-fetch@2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.1.1.tgz#369ca70b82f50c86496104a6c776d274f4e4a2d4"
+
 node-fetch@^1.0.1, node-fetch@^1.3.3, node-fetch@~1.7.1:
   version "1.7.3"
   resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-1.7.3.tgz#980f6f72d85211a5347c6b2bc18c5b84c3eb47ef"
@@ -8211,6 +8316,10 @@ prebuild-install@^2.2.2:
     tunnel-agent "^0.6.0"
     which-pm-runs "^1.0.0"
 
+precond@0.2:
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/precond/-/precond-0.2.3.tgz#aa9591bcaa24923f1e0f4849d240f47efc1075ac"
+
 prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
@@ -10205,7 +10314,7 @@ tapable@^0.2.5, tapable@^0.2.7:
   version "0.2.8"
   resolved "https://registry.yarnpkg.com/tapable/-/tapable-0.2.8.tgz#99372a5c999bf2df160afc0d74bed4f47948cd22"
 
-tape@^4.4.0, tape@^4.6.3:
+tape@^4.4.0, tape@^4.6.3, tape@^4.8.0:
   version "4.9.0"
   resolved "https://registry.yarnpkg.com/tape/-/tape-4.9.0.tgz#855c08360395133709d34d3fbf9ef341eb73ca6a"
   dependencies:
@@ -10366,7 +10475,7 @@ through2@^0.6.0, through2@^0.6.1, through2@~0.6.3:
     readable-stream ">=1.0.33-1 <1.1.0-0"
     xtend ">=4.0.0 <4.1.0-0"
 
-through2@^2.0.0, through2@^2.0.1, through2@^2.0.2, through2@~2.0.0:
+through2@^2.0.0, through2@^2.0.1, through2@^2.0.2, through2@^2.0.3, through2@~2.0.0:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/through2/-/through2-2.0.3.tgz#0004569b37c7c74ba39c43f3ced78d1ad94140be"
   dependencies:
@@ -10500,6 +10609,10 @@ traverse-chain@~0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/traverse-chain/-/traverse-chain-0.1.0.tgz#61dbc2d53b69ff6091a12a168fd7d433107e40f1"
 
+treeify@^1.0.1:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/treeify/-/treeify-1.1.0.tgz#4e31c6a463accd0943879f30667c4fdaff411bb8"
+
 trim-newlines@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/trim-newlines/-/trim-newlines-1.0.0.tgz#5887966bb582a4503a41eb524f7d35011815a613"
@@ -11361,7 +11474,31 @@ web3-net@1.0.0-beta.33:
     web3-core-method "1.0.0-beta.33"
     web3-utils "1.0.0-beta.33"
 
-web3-provider-engine@^13.0.1, web3-provider-engine@^13.6.5:
+web3-provider-engine@^13.3.2:
+  version "13.8.0"
+  resolved "https://registry.yarnpkg.com/web3-provider-engine/-/web3-provider-engine-13.8.0.tgz#4c7c1ad2af5f1fe10343b8a65495879a2f9c00df"
+  dependencies:
+    async "^2.5.0"
+    clone "^2.0.0"
+    eth-block-tracker "^2.2.2"
+    eth-sig-util "^1.4.2"
+    ethereumjs-block "^1.2.2"
+    ethereumjs-tx "^1.2.0"
+    ethereumjs-util "^5.1.1"
+    ethereumjs-vm "^2.0.2"
+    fetch-ponyfill "^4.0.0"
+    json-rpc-error "^2.0.0"
+    json-stable-stringify "^1.0.1"
+    promise-to-callback "^1.0.0"
+    readable-stream "^2.2.9"
+    request "^2.67.0"
+    semaphore "^1.0.3"
+    solc "^0.4.2"
+    tape "^4.4.0"
+    xhr "^2.2.0"
+    xtend "^4.0.1"
+
+web3-provider-engine@^13.6.5:
   version "13.6.6"
   resolved "https://registry.yarnpkg.com/web3-provider-engine/-/web3-provider-engine-13.6.6.tgz#7d8972ffcd31e103bd2ce8a521b1b7da08cb173f"
   dependencies:
@@ -11385,6 +11522,32 @@ web3-provider-engine@^13.0.1, web3-provider-engine@^13.6.5:
     xhr "^2.2.0"
     xtend "^4.0.1"
 
+web3-provider-engine@^14.0.4:
+  version "14.0.4"
+  resolved "https://registry.yarnpkg.com/web3-provider-engine/-/web3-provider-engine-14.0.4.tgz#6f96b71ea1b3a76cc67cd52007116c8d4b64465b"
+  dependencies:
+    async "^2.5.0"
+    backoff "^2.5.0"
+    clone "^2.0.0"
+    cross-fetch "^2.1.0"
+    eth-block-tracker "^2.3.0"
+    eth-json-rpc-infura "^3.1.0"
+    eth-sig-util "^1.4.2"
+    ethereumjs-block "^1.2.2"
+    ethereumjs-tx "^1.2.0"
+    ethereumjs-util "^5.1.5"
+    ethereumjs-vm "^2.3.4"
+    json-rpc-error "^2.0.0"
+    json-stable-stringify "^1.0.1"
+    promise-to-callback "^1.0.0"
+    readable-stream "^2.2.9"
+    request "^2.67.0"
+    semaphore "^1.0.3"
+    tape "^4.4.0"
+    ws "^5.1.1"
+    xhr "^2.2.0"
+    xtend "^4.0.1"
+
 web3-providers-http@1.0.0-beta.33:
   version "1.0.0-beta.33"
   resolved "https://registry.yarnpkg.com/web3-providers-http/-/web3-providers-http-1.0.0-beta.33.tgz#3b35ae00ee7df5b96b4934962ad4a86f2a5599c1"
@@ -11576,7 +11739,7 @@ websocket@^1.0.24, websocket@^1.0.25:
     typedarray-to-buffer "^3.1.2"
     yaeti "^0.0.6"
 
-whatwg-fetch@>=0.10.0, whatwg-fetch@^2.0.3:
+whatwg-fetch@2.0.3, whatwg-fetch@>=0.10.0, whatwg-fetch@^2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/whatwg-fetch/-/whatwg-fetch-2.0.3.tgz#9c84ec2dcf68187ff00bc64e1274b442176e1c84"
 
@@ -11703,6 +11866,12 @@ ws@^3.0.0:
     safe-buffer "~5.1.0"
     ultron "~1.1.0"
 
+ws@^5.1.1:
+  version "5.1.1"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-5.1.1.tgz#1d43704689711ac1942fd2f283e38f825c4b8b95"
+  dependencies:
+    async-limiter "~1.0.0"
+
 x-is-function@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/x-is-function/-/x-is-function-1.0.4.tgz#5d294dc3d268cbdd062580e0c5df77a391d1fa1e"
author	Brandon Millman <brandon.millman@gmail.com>	2018-05-09 02:04:31 +0800
committer	Brandon Millman <brandon.millman@gmail.com>	2018-05-09 02:04:31 +0800
commit	607d738342a839788b59e0dee63849ea447331bc (patch)
tree	d90078ec0e95357a2fe9fb4af65f9135e9e44408
parent	b8c611de2b82657a274c55007ffc5d72807eae7f (diff)
parent	e9d70b7b1edb5089a6e5e2a9ee8c964ab4b4d4ab (diff)
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