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* 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
* 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
* 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
- [x] Utilize webpack 4 development and production modes
- [x] Upgrade webpack dev server
- [x] Webpack 4 compatible release of thread-loader
- [x] Webpack 4 compatible release of HtmlWebpackPlugin
- [x] Webpack 4 compatible release of SwPrecacheWebpackPlugin
- [x] Webpack 4 compatible release of WebpackManifestPlugin
- [x] Update README
- [x] Update WebpackDevServerUtils
- [x] Update InterpolateHtmlPlugin
- [x] Update ModuleScopePlugin
- [x] Update WatchMissingNodeModulesPlugin
- [x] Move UglifyJS options to webpack 4 optimize
- [x] Move InterpolateHtmlPlugin to make it tapable on HtmlWebpackPlugin
- [x] vendor splitting via splitChunks.splitChunks (https://twitter.com/wSokra/status/969633336732905474)
- [x] long term caching via splitChunks.runtimeChunk (https://twitter.com/wSokra/status/969679223278505985)
- [x] Make sure process.env.NODE_ENV is proxied correctly to `react-error-overlay`
- [x] Implicit webpack.NamedModulesPlugin in dev config as its default in webpack 4
- [x] Disable webpack performance hints as we have our own filesize reporter
- [x] Replace ExtractTextPlugin with MiniCssExtractPlugin
- [x] Switch to css whole file minification via OptimizeCSSAssetsPlugin rather than per module css minification to gain performance
* 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
