* fix #2223 - [feature] Implement dotenv-expand to accept variable expansion in dot env files

* add to README TOC

* fix readme

* Update README.md

Replaced `it's` with `its`

Fix another dead link

* extra watch options regex to react-dev-utils

* fix regex

* add test

* fix eslint error

* include react-dev-utils test in CI script

* attempt to fix import error

* attempt to fix error on CI

* Update .eslintrc

According to this parameter's comment, it's unused but webpack-dev-server crashes without it. However, webpack-dev-server is running fine for me without this parameter.

Implement settings as suggested here:
https://github.com/mishoo/UglifyJS2/tree/harmony#mangle-options

To solve this Safari bug:
https://bugs.webkit.org/show_bug.cgi?id=171041

* Windows compatibility

* Use regex for mutli-replace

* Allow the dev server to watch for changes in src/node_modules

* fix eslint error

* fix broken regex

* handle trailing slash edge case for file paths

Closes #2760
Fixes #3223

* File headers BSD+Patents -> MIT

* BSD+Patents -> MIT

* Convert react-error-overlay to React

* Update compile-time error overlay to use react-error-overlay components

 * Refactor react-error-overlay components to container and presentational components.

 * Make the compile-time error overlay a part of react-error-overlay package.

 * Use react-error-overlay as dependency in react-dev-utils to show compile-time errors.

* Run Prettier

* Move the function name fix into StackFrame itself

* Fix clicking on source code snippet to open the code in editor

* Use exact objects + minor style tweak

* Don't linkify frames that don't exist on the disk

* Fix lint

* Consolidate iframe rendering logic

* Remove circular dependency between react-dev-utils and react-error-overlay

* Fix lint

* Fix decoupling of react-dev-utils and react-error-overlay by moving middleware

* Deduplicate identical errors

* use env variable to disable source maps

* Rename to use SOURCE_MAP with explicit value

* Update webpack.config.prod.js

* Allow importing package.json

* Remove package.json import from App.js template

* fix importing package.json

* Rename variable to reflect path is relative to root

* Check for both package & package.json in ModuleScopePlugin

* Use regex to check relative path to package.json

* Strictly enforce package.json extension on scope plugin

* Add allowedPaths to ModuleScopePlugin ctor and use it to allow app package.json

* Remove package.json import from App.js template

* Add package.json to react-scripts/template, show package version and name in the template

* Remove import package.json from template

* Remove template/package.json and its references in code

* Update ModuleScopePlugin.js

* Update README.md

* Use oneOf to resolve correct loader

* Add html and json fallthrough again

* Use oneOf to resolve correct loader in dev

* Document file-loaders `js` exclusion

* Remove `jsx` from exclusion in prod config

* Update eslint-loader 1.7.1 -> 1.9.0

* Add eslintPath option

* Update eslint 3.19.0 -> 4.1.1

* Update peer dependencies

* Move eslintPath config to outside @remove-on-eject

* Fix external CSS imports

* Add external CSS import to integration test

* Fix assertion

* Better React Native Web support

* Adding better react-native-web support for jest testing

* Fix sourcemap directory organizing on Windows

* Update comments

Since `v2.2.1` of webpack the need for `ident` for complex options is no longer required. See

https://webpack.js.org/guides/migrating/#complex-options

* Update sw-precache-webpack-plugin to v0.11.3

* Pin the version

* Added NamedModulesPlugin in webpack.config.dev.js

* Update webpack.config.dev.js

* Disable a micro-option in uglify that appears to be buggy

See https://github.com/facebookincubator/create-react-app/issues/2376

* wrong plugin

* Add a comment

Removed the overriding of reduce_vars to false since webpack v2.6.0 included the fixed for Uglify bug (#2351)

* Add navigateFallbackWhitelist /__* to SW Precache config

* Add comments

* Provide a no-op SW that will be served by the dev environment.

* Hide no-op service worker from user