Add weback-dev-server with hot/hmr support

* adds `npm start` / `yarn start` script
* starts a webpack-dev-server using the dev config, served on :3333
* hot reloading (HMR) for react/styles, not working for angular code
* new entry `dev.ts` for dynamic imports of CSS theme (ExtractText does
not work with HMR)
* TS loader pipeline moved out of common to add HMR for react
* applied `hot()` to some react containers (that's their new default
 export, named exports remains for testing)
* added sections to README
* updated yarn.lock

scripts/webpack/webpack.prod.js

@@ -20,8 +20,27 @@ module.exports = merge(common, {
 
   module: {
     rules: [
+      {
+        test: /\.tsx?$/,
+        enforce: 'pre',
+        exclude: /node_modules/,
+        use: {
+          loader: 'tslint-loader',
+          options: {
+            emitErrors: true,
+            typeCheck: false,
+          }
+        }
+      },
+      {
+        test: /\.tsx?$/,
+        exclude: /node_modules/,
+        use: [
+          { loader: "awesome-typescript-loader" }
+        ]
+      },
       require('./sass.rule.js')({
-        sourceMap: false, minimize: true
+        sourceMap: false, minimize: true, preserveUrl: false
       })
     ]
   },
@@ -55,8 +74,8 @@ module.exports = merge(common, {
     new webpack.optimize.CommonsChunkPlugin({
       names: ['vendor', 'manifest'],
     }),
-    function() {
-      this.plugin("done", function(stats) {
+    function () {
+      this.plugin("done", function (stats) {
         if (stats.compilation.errors && stats.compilation.errors.length) {
           console.log(stats.compilation.errors);
           process.exit(1);