* Enable loose mode for `class-properties`

* Update comment to point to discussion

Resolves #4263 

* Add explicit dep on plugin-proposal-object-rest-spread to babel-preset-react-app

* Bump babel-related deps to beta.42

* Pass useBuiltIns directly to react-preset

* feat: add opt-out for prestet-flow to work with @babel/preset-typescript

* docs: adding example in readme

* Remove PropTypes from production build (#209)

* Added react/forbid-foreign-prop-types rule to eslint config

* Removed react/forbid-foreign-prop-types rule from eslint config

* Provide better defaults

* Let babel determine features to compile

* meh

* Remove setting of BABEL_ENV

* Revert "Remove setting of BABEL_ENV"

This reverts commit ee2db707.

* Set browsers to ie9

* Update dependencies in react-scripts

* Add first pass of working dependencies for babel-preset-react-app and react-scripts

* Bump more dependency versions

* Adjust more versions and edit fix options

* Restore functionality of old preset

* Disable Uglify in iframe webpack

* Apply prettier

* Re-enable cache in dev and clean deps

* Lock packages and move babel/core to dep in preset

* Bump babel-jest

* Re-enable uglify

* Nest forceAllTransforms correctly in webpack config

* Install babel-core bridge for jest

* Add jest-cli and babel-core bridge to make tests in react-error-overlay pass

* Re-enable transform-dynamic-import

* Add dynamic import syntax support back

* Use new babel in kitchensink

* Transform modules in test

* Revert "Transform modules in test"

This reverts commit 539e46a1.

* Attempt fix for ejected tests

* try this

* Add regenerator back

* Bump babel deps to beta.34

* Remove bad files

* Use default when requiring babel transform plugin

* Bump deps

* Try the fix?

* Oopsie

* Remove some weird things

* Run Babel on react-error-overlay tests

* Try fixing kitchensink

* Use new API for codeFrame

* Add missing (?) babelrc

* Maybe this helps?

* Maybe fix mocha

* I shouldn't have deleted this 

* add experimental babel-plugin-macros support

closes #2730

This will remain undocumented until the brave have tried it in the wild.

**Test Plan:**

There's currently no established way to test changes to
`babel-preset-react-app`. But I did create
[`unmaintained-react-scripts-babel-macros`](https://www.npmjs.com/package/unmaintained-react-scripts-babel-macros)
[a while back](https://github.com/facebookincubator/create-react-app/issues/2730#issuecomment-328153982)
and it worked well.

* Pin the version

* Always include destructuring transform

* Fix lint

* File headers BSD+Patents -> MIT

* BSD+Patents -> MIT

* Upgrade webpack & related deps

* Disable module transform (requires webpack 2+)

* mv create-react-app/index.js -> create-react-app/creteReactApp.js

* update to modern code style

* var -> cosnt

* set trailing-coma to es5 for prettier

* Switch to preset-env
Disables webpack modules by enabling babel modules to resolve #1638

* Bump babel-core to match babel preset versions

* Add uglify to targets

* Test basic import syntax

* Compile import() in test, only support syntax otherwise

https://github.com/babel/babel/issues/4851 is closed

* Bump babel deps

* Re-enable transform-react-constant-elements

Resolves #553

* Disable require.ensure

* Replace require.ensure with import

* Add babel plugin for parsing import()

* Get the default

* Upgrade babel-eslint to support dynamic import

* Fix dep

* Update deps

* Upgrade webpack

* Address more webpack v2 ...

* Update html-webpack-plugin

* Remove LoaderOptionsPlugin from dev config

* ExtractTextPlugin still uses webpack 1 syntax
... and doesn't support complex options (yet)

* Grammar nit

* Update extract text webpack plugin

* - Remove webpack.LoaderOptionsPlugin
- Update deps

* Lerna hoists packages

* Update extract-text-webpack-plugin

* Update webpack-dev-server

* Remove imports for the tests

* stop removing babelrc

* temporary fix missing babel plugins

* Add an issue link

* Enable useBuiltIns option on object-rest-spread

* note polyfill requirement

* Enable useBuiltIns with transform-react-jsx

* Add direct ref to transform-react-jsx

* Update `babel-plugin-transform-object-rest-spread` to v6.19.0

The `babel-plugin-transform-object-rest-spread` v6.19.0 update will
allow us to remove the `babel-plugin-transform-es2015-destructuring` and
`babel-plugin-transform-es2015-parameters` as the object rest spread
transform will now work standalone and not require additional tranforms

* Remove unnecessary babel transform plugins from babel-preset-react-app

The `babel-plugin-transform-object-rest-spread` v6.19.0 update makes
these plugins unnecessary, as v6.19.0 can be used stand-alone

Explain the usage of react-jsx-source & react-jsx-self

* Update babel-preset-env to 0.0.8

Changes between 0.0.6 and 0.0.8 should be backwards compatible:
https://github.com/babel/babel-preset-env/blob/master/CHANGELOG.md

* Use `node: 'current'` as target for babel-preset-env

This replaces the hand-rolled node version setup with a new feature that
was introduced in babel-preset-env@v0.0.7

https://github.com/babel/babel-preset-env/blob/v0.0.7/CHANGELOG.md

* Enable babel parameters/destructuring for all versions of Node

* Add more descriptive comment explaining plugin use

* Disable ES2015 transforms based on node version using babel-preset-env

* pass major version number for node to babel-preset-env instead of version string

* use parseFloat() instead of parseInt() to parse node version

* fixed style nits

Fixes #700.
Read about it here: https://twitter.com/dan_abramov/status/779308833399332864.

tagging dev-only code (@remove-on-publish-begin/end) and pre-eject-only code (@remove-on-eject-begin/end) #257 (#257)

This makes generators work with Jest.

Fixes #255.
Replaces #262.

Disabled because of issues:
 * https://github.com/facebookincubator/create-react-app/issues/525
 * https://phabricator.babeljs.io/search/query/pCNlnC2xzwzx/

TODO: Enable again when these issues are resolved.

* Started using babel-preset-latest

* Updated babel dependencies

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

* Disabled redundant regenerator transform