Upgrade v4.0.0

[germanf]

Main

• Remove Immutable.js in favor of Immer
• Migrate from enzyme to react-testing-library
• New instructions for snapshot and behavior testing
• Embracing Hooks
• Add eslint-plugin-react-hooks
• Migrate all class components to functions
• Add useInjectSaga and useInjectReducer hooks
• Remove generator options to extend Component or PureComponent. Replace with a React.memo option.
• Use React.lazy and Suspense instead of loadable-components to code-split and asynchronously load components
• Upgrades to Babel 7, React 16.6, ESLint 5, styled-components 4
• Config file and Babel plugin cleanup
• Fix extract-intl script for Babel 7
• Upgrade Webpack to v4
• Syntax / function changes (mode, optimization, etc.)
• Remove webpack loader syntax from main app
• Better SVG handling
• Webpack improvements
• Removal of dll plugin
• Gzipping and better optimization config in prod
• react-app-polyfill for targeted IE support
• Switch from UglifyJS to Terser plugin
• Icons generated by webpack-pwa-manifest plugin
• Upgrade Enzyme to v3
• Add in new Adapter, as required
• Minor Jest config tweaks to include new Enzyme setup config
• Added support for node v9, v8
• Removed support for node v6
• Add Prettier
• Upgrade ESLint to v4
• Add stylelint and stylelint config

Internals updates

• Many dependency updates including:
• react and react-dom (16.6 to 16.8.6)
• react-redux (5 to 7)
• connected-react-router (4 to 6)
• react-router-dom (4 to 5)
• redux-saga (0.16 to 1)
• sanitize.css (4 to 8)
• Update default saga injection mode to DAEMON
• Update generators to reflect all the stack changes
• Migrate default Node version to lts/dubnium
• Fix support for stylelint
• Fix setup script for Windows environments
• Generate passing tests for components/containers
• Rewrite generators code
• Complete rewrite or generate-templates-for-linting.js
• webpack.DefinePlugin => webpack.EnvironmentPlugin
• New Webpack code splitting config
• Remove process.noDeprecation = true
• Migration from deprecated react-router-redux to connected-react-router
• Migration from react-loadable to loadable-components
• Quick start - Clone to a named directory
• Scoped variables in i18n messages
• Use .prettierrc path relative to .eslintrc.js
• Fixes to generators
• babel-plugin-lodash for easier import syntax
• Miscellaneous fixes

[achamely]

@germanf looks ok, though you have it labeled WIP (work in progress)> was there more to add before it is to be merged?

[germanf]

@germanf looks ok, though you have it labeled WIP (work in progress)> was there more to add before it is to be merged?

@achamely Yeah! the PR now includes the changes related to building tools, packaging, deploy, libs, helpers & foundations. Before to merge I've to add the refactoring of the app in it-self (app folder)

[germanf]

@achamely PR ready