Merge branch 'v2-prototype' into feature/combinatorial-testing

* v2-prototype: (97 commits)
  Fix typos in comments
  Add modifier and tests for removeAuthorizedAddressAtIndex
  Update and add tests
  Change removeAuthorizedAddress => removeAuthorizedAddressAtIndex
  Move isFunctionRemoveAuthorizedAddress to test
  Fix usage of `popLastByte`
  Fix LibBytes is a library
  Remove `areBytesEqual`
  Fix usage of `contentAddress()`
  Clean low bits in bytes4
  Clean high bits in address
  Refactor LibBytes.readBytes4 for consistency
  Fix LibBytes.equals
  Add trailing garbage testcase for LibBytes.equals
  Rename bytes.equals
  Add slice and sliceDestructive
  Rename bytes.rawAddress and add bytes.contentAddress
  Rename read/writeBytesWithLength
  Using LibBytes for bytes
  Make LibBytes a library
  ...

# Conflicts:
#	packages/contracts/src/utils/constants.ts
#	packages/contracts/test/exchange/core.ts

1 files changed, 0 insertions, 1 deletions

diff --git a/packages/contracts/test/exchange/wrapper.ts b/packages/contracts/test/exchange/wrapper.ts
index 6f03c7f6f..af39855de 100644
--- a/packages/contracts/test/exchange/wrapper.ts
+++ b/packages/contracts/test/exchange/wrapper.ts
@@ -5,7 +5,6 @@ import { BigNumber } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as chai from 'chai';
 import * as _ from 'lodash';
-import 'make-promises-safe';
 
 import { DummyERC20TokenContract } from '../../src/generated_contract_wrappers/dummy_e_r_c20_token';
 import { DummyERC721TokenContract } from '../../src/generated_contract_wrappers/dummy_e_r_c721_token';