Closes #2232

 - babel-preset-react-app@3.0.0
 - create-react-app@1.3.1
 - eslint-config-react-app@1.0.0
 - react-dev-utils@1.0.0
 - react-error-overlay@1.0.0
 - react-scripts@1.0.0

* Swap changelogs

* Update and rename CHANGELOG.md to CHANGELOG-0.x.md

* Update and rename CHANGELOG-1.x.md to CHANGELOG.md

* Update CHANGELOG.md

* Add documentation about using code splitting

* Revise docs a bit

* Update README.md

* Update README.md

* Update README.md

* Uncomment merged PRs

* Switch to br

* Update some webpack links

* Add a little about section for PWA

* oops

* fast on subsequent visits

* Add manual proxy config instructions

* hint package.json

* Change to js for comments

* Tune wording

* Show warnings for builds

* Move WebpackDevServer helpers into react-dev-utils

* Fixed several of the issues and nits from PR:

* Moved margin between header and file name to header, so when content was scrolled, the header would remain more separate
* Made build-time and runtime overlays better match
* Secondary error <pre> style now uses yellow bg instead of red
* 'Scrollable Header' (see above comment to why this is necessary) but I did increase the max-height from 35% to 50%.
* Fixed header and 'X' button vertical alignment

* Temporary stack margin fix

* Move "N errors" to the top

* Tweaked overlay styles

* Tweaked pre-style

* Clicked to background overlay dismiss

* Tidied up styles tobe more mobile Safari friendly

* Re-enabled pre-wrap

* Margin fixes

* Base font-size 10 -> 11px

* Error overlay is full-screen now based on feedback

* Make "N errors on the page" visible again

* Fix bottom margin of frame location and lack of tab nav

* Add tooltip to close button

* Bring compile error styles closer to runtime overlay

* s/when/if/

* Correct readme

* Add tests

* Update README.md

* sw-precache-webpack-plugin, SW registration, manifest.json

* Documentation + a few SW tweaks.

* Added an unregister method, too, just in case.

* More info for the READMEs.

* Add minify to SWPrecacheWebpackPlugin config

* Fix SWPrecacheWebpackPlugin typo

* Fix file references in READMEmd

* Add instructions for testing service-worker locally

* Review feedback

* Some additional PWA metadata

* Use sw-precache-webpack-plugin v0.9.1 for node >=4.0.0 support

* Review feedback.

* Add manifest.json context in a comment.

* Fix typo

* Downgrade to sw-precache-webpack-plugin 0.9.1

* Hide changes in README until 1.0

* Hide changes in User Guide until 1.0

* Hide more docs

* Webpack config typo

* Webpack config more typo

* Add module scope plugin

* Oops

* Add comments

* Check windows seps too

* More descriptive error

* Document it

* Ignore Moment.js locales by default

* Update README.md