Merge branch 'development' into feature/addSubproviders

* development: (50 commits)
  Add PR number to changelog
  Address feedback
  Add requestId to subscription messages and update json-schemas
  Remove isomorphic-fetch types from contracts package
  Update README
  Regenerate files
  Make it private
  Change package name
  Update README
  Make fileExtension configurable
  Rename abi-gen to typed-contracts
  Add docs for typed-contracts
  Remove TODOs
  Introduce separate ContextData type and rework it
  Check ABI is defined
  Introduce a const for 'contract.mustache'
  Improve error message
  Reuse util
  Fix a typo
  Introduce a const for 'function'
  ...

# Conflicts:
#	yarn.lock

1 files changed, 51 insertions, 0 deletions

diff --git a/packages/contracts/README.md b/packages/contracts/README.md
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+Contracts
+-----
+
+## Useful 0x Wiki Articles
+
+* [Architecture](https://0xproject.com/wiki#Architecture)
+* [Contract Interactions](https://0xproject.com/wiki#Contract-Interactions)
+* [Contract deployed addresses](https://0xproject.com/wiki#Deployed-Addresses)
+* [0x Protocol Message Format](https://0xproject.com/wiki#Message-Format)
+* [Bug Bounty Program](https://0xproject.com/wiki#Bug-Bounty)
+
+## Setup
+
+### Installing Dependencies
+
+Install [Node](https://nodejs.org/en/download/releases/)
+
+Install [yarn](https://yarnpkg.com/lang/en/docs/install/) in order to install the project dependencies more deterministically.
+
+Install project dependencies:
+
+```
+yarn
+```
+
+### Running Tests
+
+Start Testrpc
+
+```
+yarn testrpc
+```
+
+Run tests
+
+```
+yarn test
+```
+
+## Contributing
+
+0x protocol is intended to serve as an open technical standard for EVM blockchains and we strongly encourage our community members to help us make improvements and to determine the future direction of the protocol. To report bugs within the 0x smart contracts or unit tests, please create an issue in this repository.
+
+### ZEIPs
+Significant changes to 0x protocol's smart contracts, architecture, message format or functionality should be proposed in the [0x Improvement Proposals (ZEIPs)](https://github.com/0xProject/ZEIPs) repository. Follow the contribution guidelines provided therein.
+
+### Coding conventions
+
+We use a custom set of [TSLint](https://palantir.github.io/tslint/) rules to enforce our coding conventions.
+
+In order to see style violation errors, install a tslinter for your text editor. e.g Atom's [atom-typescript](https://atom.io/packages/atom-typescript).