* Switch back to babel-loader

* Preserve existing caller options. Use Object.assign instead of object spread.

* Updated filename in package.json

* Update comment about cache identifier

* Update macro check to use a regex

* Move macro check regex out of function

* Add new behavior e2e test script

* Add output for transparency

* Remove runtime alias hack

* Pass absolute path to preset

* Change comment

* Give a relative path to absolute runtime

* Clean up config

* Tweak again

* Make absolute runtime the default

* Remove runtime package from error overlay

https://github.com/facebook/create-react-app/pull/4169#issuecomment-425145384

* Add workbox service worker functionality

* Remove debug

* Set workboxConfig for when there isn't a cra config file

* Remove workbox configuration options as c-r-a isn't planning on supporting optional configuration

* Remove c-r-a config path from paths

* Add workbox service worker functionality

* Remove c-r-a config path from paths

* Inline the webpack workbox config

* Use settings reccommended by @jeffposnick

https://github.com/facebook/create-react-app/pull/4169/#issuecomment-422963072

* Fallback to public url index.html, not root

* Add one comment

* Update comment

* Correct regex

* Output CSS sourcemaps in separate file

* explain options

https://github.com/facebook/create-react-app/pull/5097

Regenerator is already included by preset-env.

Fixes #4627

* changed to Migrate to v2.x

* richer explanation

* Update README.md

 - babel-plugin-named-asset-import@0.2.0
 - babel-preset-react-app@4.0.0
 - confusing-browser-globals@1.0.1
 - create-react-app@2.0.0
 - eslint-config-react-app@3.0.0
 - react-app-polyfill@0.1.0
 - react-dev-utils@6.0.0
 - react-error-overlay@5.0.0
 - react-scripts@2.0.0

* Tweak browser support section

* Make sass message friendlier

* Tweak message

* Tweak message futher

* test

* Update CONTRIBUTING.md

* Update CONTRIBUTING.md

This reverts commit 11f1aa09.

* add kitchensink-eject to local-test

* add jest transform

Closes https://github.com/facebook/create-react-app/issues/5095

* Turn on helpers and test importing something with async/await works

* Compiling babel runtime breaks itself

* Add helpers option to babel plugin with defaults

* Make helpers off by default and on in our configuration

* Hit eject and e2e

* meh

* copy'n'paste

* change again

* Turn off helpers by default in /prod, /dev, /test

* oops

* Spread undefined

* Use object assign not object spread

* Put preset in template since it's needed

* Fix e2e tests