Fixes #186

* Transform async functions with regenerator

Remove `transform-async-to-generator`, which to my understanding is meant
to be used in environments that support generators natively.

Because we're compiling generators to ES5 anyway, we can simply use
`regenerator` to transform async functions too, which results in
slightly simpler output and only uses the regenerator runtime instead
regenerator runtime + _asyncToGenerator Babel helper.

* Add babel-plugin-transform-regenerator

* Use dependencies with an exact version

* Make Babel config more verbose and simpler

* Support async/await

* Accept version when loading fonts e.g. font-awesome

* Add query string support to mp4/webm

* Use /static paths for assets

* Fix e2e test

* Symlink-friendly path resolution

I was having difficulties using a local copy of `react-scripts` and `npm link`ing it into a real world project. This change resolves paths relative to the current working directory (that is, most likely the directory of the app) rather than assuming a certain directory structure.

* Fix relative paths in post-eject case

because I'm an idiot

* Renamed resolveLib to resolveOwn

This is the one people are converging on, and flow-vars may get deprecated.

This enables us to ship them now, and find a way to resolve runtime path without webpack later.
See https://github.com/facebookincubator/create-react-app/issues/255

Fixes #260

* Enable generators

* Opt out of using helpers

Also fixes #194

Some libraries rely on it, and they work fine with browserify.
Let’s just do the right thing here by default.

* Use keyword `warn` in eslint config

We can use the keyword `warn` for rule configuration instead of a number.

* Fix comment which where WARNING was replaced

* Remove extra apostrophe

update webpack css include path, allow files to be loaded from the project root node_modules folder. (#178)

This project is a really good use case to apply some accessibility
rules to the lint config. For beginners getting started with React, we
can also teach/enforce basic accessibility rules in the web at author
time.

For now, I’ve just applied to the rules that are listed in
`eslint-config-airbnb` because these are most real-world tested, and we
can continue to add.

Happy to help if there are any questions/issues/concerns about the
plugin!

* Provide instructions on GH Pages deploy

* Add docs for GH Pages deployment

* Prevent incorrect paths in file-loader

* Minor message tweaks

* Update README.md

* Fix relative paths

* Don't assume the project is hosted at the root
* Require package.json in webpack.config.prod.js and use homepage if set; otherwise use '/'

* Fix package.json path and add sample package.json for tests

* Update publicPath to use relative path portion of URL defined in homepage

* Update successful bundle generation message

* Show bundle generation success message based on presence of homepage in package.json

Ref #156

Not sure if we can simply delete the line and that'll disable it, so I
went with setting it to 0. Let me know!

* Resolve imported CSS files from anywhere
* Resolve imported CSS files from src and node_modules folder only

Closes #103

See #72 for details

Local npm start and npm run build got broken by #33

* Make errors and warnings nicer

* Fix license stripping to not be eager

* Minor tweaks

Inspired by react-boilerplate setup