Merge branch 'development' into dev-section-redesign

* development: (62 commits)
  Fix linter error
  Upgrade ethereum-types
  Lint and update deps
  Be more explicit with falsiness
  Add type to cssRuleIfExists
  Fix issue where we throw if non-numeric characters are used in input
  Upgrade to more recent types, fix yarn.lock
  [fix]: [testnet-faucet] Exit 1 on build fail
  Explains tools we want them to use
  Add note about button
  Add dev-tools-pages bundles to gitignore
  Improve README
  Fix button and center
  Increase max bundle size for instant
  Add stuff
  Initial project scaffolding
  Change tslint config to remove conflicts with prettier
  fix: [testnet-faucet] Signing of orders
  Update the CHANGELOG
  Add comments for expiryBuffer
  ...

1 files changed, 88 insertions, 0 deletions

diff --git a/packages/dev-tools-pages/README.md b/packages/dev-tools-pages/README.md
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+## Dev tools pages
+
+This repository contains our dev tools pages.
+
+## Local Dev Setup
+
+Requires Node version 6.9.5 or higher & yarn v1.9.4
+
+### 1. Install dependencies for monorepo:
+
+Make sure you install Yarn v1.9.4 (npm won't work!). We rely on our `yarn.lock` file and on Yarn's support for `workspaces` in our monorepo setup.
+
+```bash
+yarn install
+```
+
+### 2. Initial setup
+
+To build this package and all other monorepo packages that it depends on, run the following from the monorepo root directory:
+
+```bash
+PKG=@0xproject/dev-tools-pages yarn build
+```
+
+Note: Ignore the `WARNING in asset size limit` and `WARNING in entrypoint size limit` warnings.
+
+### 3. Run dev server
+
+```bash
+cd packages/dev-tools-pages
+yarn dev
+```
+
+Visit [http://localhost:3572/](http://localhost:3572/) in your browser.
+
+The webpage will refresh when source code is changed.
+
+### 4. Code!
+
+There are some basic primitives we'd like you to use:
+
+1.  `<Container>Stuff</Container>`: Use containers instead of divs,spans,etc... and use it's props instead of inline styles (e.g `style={{margin: 3}}` should be `margin="3px"`
+
+2.  `<Text>Look ma, text!</Text>`: Use text components whenever rendering text. It has props for manipulating texts, so again no in-line styles. Use `fontColor="red"`, not `style={{color: 'red'}}`.
+
+3.  Styled-components: See the `ui/button.tsx` file for an example of how to use these.
+
+4.  BassCss: This library gives you access to a bunch of [classes](http://basscss.com/) that apply styles in a browser-compatible way, has affordances for responsiveness and alleviates the need for inline styles or LESS/CSS files.
+
+With the above 4 tools and following the React paradigm, you shouldn't need CSS/LESS files. IF there are special occasions where you do, these is a `all.less` file, but this is a solution of last resort. Use it sparingly.
+
+### Clean
+
+```bash
+yarn clean
+```
+
+### Lint
+
+```bash
+yarn lint
+```
+
+### Prettier
+
+Run from the monorepo root directory:
+
+```
+yarn prettier
+```
+
+### Resources
+
+##### Toolkit
+
+*   [Styled Components](https://www.styled-components.com/)
+*   [BassCSS](http://basscss.com/)
+
+##### Recommended Atom packages:
+
+*   [atom-typescript](https://atom.io/packages/atom-typescript)
+*   [linter-tslint](https://atom.io/packages/linter-tslint)
+
+## Contributing
+
+We strongly recommend that the community help us make improvements and determine the future direction of the protocol. To report bugs within this package, please create an issue in this repository.
+
+Please read our [contribution guidelines](../../CONTRIBUTING.md) before getting started.