This makes generators work with Jest.

Fixes #255.
Replaces #262.

Fixes #532

* Update Jest

* Remove default snapshot test

* Fix a few things

* Add a simple default test

* App.spec.js -> App.test.js

* Fix e2e test

* Bump Jest

* Started using babel-preset-latest

* Updated babel dependencies

* Remove redundant babel-plugin-syntax-async-functions

* Disabled redundant regenerator transform

* Load favicon through html-loader.

Fixes #291.

* Add test for *.ico in e2e test suite

* Configure html-loader to process <link href="...">

* Address feedback on html-loader inclusion.

* Place favicon.ico at the root of the build dir

* Make comment style consistent between prod and dev webpack configs

* Fix html-loader config in dev mode

Ref #387

Fixes #391

* Creating a new app in the current directory

* Fixed style mistakes

This allows users to avoid CORS in simple projects that are hosted on the same server as backend.

* 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

The problem has since been fixed upstream.

This reverts commit f7011e04.

This fixes #302 by temporarily forking `detect-port`.
Hopefully this fix will be merged into the original project, and we can refer to it again.

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

https://docs.npmjs.com/files/package.json#files

* Display JS and CSS bundle sizes after build

* Print gzipped filesize, address nits

* Use filesize for human readable output.

* Improve error handling in E2E script

* Expose e2e.sh as npm test script

* Enable generators

* Opt out of using helpers

Also fixes #194

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!