* Fix paths in CSS files when homepage is set to "./"

In the production build, ExtractTextPlugin is used to generate a separate CSS file instead of injecting style through JavaScript. This plugin does not work well by default with nested output structure. To fix it, we give it a relative publicPath pointing to the build folder.

* Add section in README to explain how to make builds deployable anywhere

* Apply review requested change

* Apply review changes 2

* Add `PUBLIC_URL` env variable for advanced use (#937)
* Add support for `PUBLIC_URL` env variable
* Remove unnecessary duplications
* Simplify served path choice logic
* Honor PUBLIC_URL in development
* Add e2e tests

Enables serving static assets from specified host.

* Make all vars accessiable in index.html

* Fix wrong env provieded to DefinePlugin

* Separate results from getClientEnvironment

* The `string` should be object instead of string

* Fix accessing wrong field

* Changed variables naming to `raw` and `stringified`

* Remove trailing commas

* clarifying the use of custom environment variables

* Tweak

Updated README.md to refer to the current rebranding.

* Add ESLint config for VS Code users

* Update VSC ESLint note to a better solution 

Update VSC ESLint note to a better solution as discussed in Pull Request

* Reflect websocket proxy support on README

* Add 'the'

- code style

* E2E: run tests when react is ready

* Entangle e2e with callbacks

* Remove unused e2e lines

ATM if react-scripts is (erroneously) declared in `dependencies` instead of `devDependencies` or isn't declared at all, the `eject` script will fail half-way. This change makes it more robust, react-scripts will be removed from either, if present.

Per final comment in #372

`Snapshot rendering should actually be pretty stable / useable after React 15.4.1.
See this post for more info.`

* Added Rails link to User Guide

* docs: unify sections for rails and node backend integration

* docs: fix faulty link and indentation

* Add causes of dev server not detecting changes

Add causes of `npm start` not detecting changes to Troubleshooting chapter of User Guide

* Reworded slightly

* Update README.md

* Use a more sophisticated template for end-to-end testing.

* Not publish integration tests to npm

* Use "commander" for  cli argv handling

* Handle different scripts version forms and exits without a name given

* Prepare the commands for testing with a template

* Fix dev "template" path

* Add various features to test

* Test various features separately

* Test language features

* Comment unused e2e.sh lines

* Add "development" tests

* Test environment variables

* Test webpack plugins

* Replace kitchensink README

* Switch integration tests from jest to mocha

* Use `fs-extra`

* Use the correct folders

* Do some cleanup

* Print a better message for `--template`

* Test `npm start` with and without https

* Separate fast e2e testing from kitchensink testing

* Hide `--internal-testing-template` (former `--template`) CLI option

 - create-react-app@1.0.3
 - react-scripts@0.8.5

There’s a common tool included in Hadoop that also has a `yarn` command,
which created issues for users who had Hadoop installed:
* #1257
* #1363

Yarn also installs the command under `yarnpkg` alias (added in
https://github.com/yarnpkg/yarn/commit/cefa9a368dd3df1a1f1ecd9e50de9c5fabefbc92)
so we can use `yarnpkg` instead of `yarn` to make it more reliable.

This has no effect on users who don't have Hadoop installed, but those
who have won't see errors from falsely detecting Hadoop Yarn as Yarn
the package manager, and they can now also install Yarn to make use of
our Yarn support without the Hadoop Yarn interfering.

There’s a common tool included in Hadoop that also has a `yarn` command,
which created issues for users who had Hadoop installed:
* #1257
* #1363

Yarn also installs the command under `yarnpkg` alias (added in
https://github.com/yarnpkg/yarn/commit/cefa9a368dd3df1a1f1ecd9e50de9c5fabefbc92)
so we can use `yarnpkg` instead of `yarn` to make it more reliable.

This has no effect on users who don't have Hadoop installed, but those
who have won't see errors from falsely detecting Hadoop Yarn as Yarn
the package manager, and they can now also install Yarn to make use of
our Yarn support without the Hadoop Yarn interfering.

Browser launch can still be suppressed using BROWSER=none

* Adds note on how to resolve file or directory not found errors for heroku deployments

* Style tweaks

* Add "Changing the Page Title" to User Guide

* Add link to main README

 - create-react-app@1.0.2
 - react-dev-utils@0.4.2
 - react-scripts@0.8.4

* Proxy rewrites Origin header to match the target server URL

* Added comments on rewriting Origin header by the proxy middleware