https://github.com/facebookincubator/create-react-app/pull/2123#discussion_r116062043

* Add get-source-map tests

* Fixtures shouldn't be formatted

* Add mapper tests

* Add stack-frame tests

* Add more util tests

* Add unmapper tests

* Add parser tests

* Switch to snapshots

* Snapshot more

* ༼ つ ◕_◕ ༽つ stack-frame-overlay

* Fix linting

* Remove auto overlay

* Fix e2e

* Pull in the rest

* Appease flow

* Correct dep

* Remove old repo references

* Check flow on test

* Test overlay in e2e

* Add cross env

* Rename package

* Make sure it gets built post-install

* Update the README

* Remove extra builds now that there's a postinstall script

* Revert "Remove extra builds now that there's a postinstall script"

This reverts commit 8bf601db.

* Remove broken script

* Fix some dev ergo

* Prettify errors and warnings for Webpack 2

* Update formatWebpackMessages.js

* Bump minimal Node version to 4.7.0

* Bump minimal Node version to 4.7.0

Modified additional files that needed a bump to 4.7.0 minimum node version

* Bump minimal Node version to 4.7.0

Reverse changes to packages/create-react-app/index.js as this file needs to continue to work on Node 0.10+

* Bump minimal node version to 6

* Bump minimal node version to 6

* Bump minimal node version to 6

* Revert "Ignore the yarn cache directory (#2063)"

This reverts commit 94149c77.

* Revert "Forbid using window properties as global variables (#1840)"

This reverts commit 5a7d8e89.

* Forbid using window properties as global variables

* Change globals list to match Standard.

* Fix globals

* Fix instructions for serving with now

Not sure if new, but the `--single` flag is now important.

* Keep it shorter

* Update README.md

* Update README.md

* Suggest to create .eslintrc for IDE lint plugins

* Update README.md

* Update README.md

* Define dev chunk names

Fixes #2046

* Add comment

* Modularize and extract crashOverlay to iframe

* Do not break words

* Disable warning overlay

* Use CJS imports

* resolves facebookincubator/create-react-app#1986 updates CSS Preprocessor docs to include information on node-sass-chokidar alternative to node-sass

* Update README.md

Minify and map css

* Change proxy localhost to I27.0.0.1 for windows

* Update comment

* resolve localhost IP with DNS lookup on windows

* Fix CI errors

* Promisify addWebpackMiddleware

* Remove Node 6 syntax

* Update addWebpackMiddleware.js

* Actually use the resolved proxy

* removed redundant already default options in UglifyJsPlugin

* re-enabled remove comments Uglify option

JSDoc-style comments weren't being removed

* Node.js serving with absolute path

It’s safer to use the absolute path of the directory that you want to serve, in case you run the express app from another directory.

* Update README.md

* Adding folder structure to help people navigate through project. It helps in resolving issues by providing brief description of each package and its purpose

* Removing unnecessary packages from Folder structure heading

* Update CONTRIBUTING.md

Pass the host from environment variable as argument of the devServer's
listen function instead of a field of options object.
Set the default host to 0.0.0.0 instead of localhost.