Upgrade webpack to v2 and other deps (#8491)

* update to webpack2 and other deps

* fix linting

webpack/config/index.js

@@ -19,10 +19,16 @@ module.exports = {
     // npm install --save-dev compression-webpack-plugin
     productionGzip: false,
     productionGzipExtensions: ['js', 'css'],
+    // Run the build command with an extra argument to
+    // View the bundle analyzer report after build finishes:
+    // `npm run build --report`
+    // Set to `true` or `false` to always turn it on or off
+    bundleAnalyzerReport: process.env.npm_config_report, // eslint-disable-line no-process-env
   },
   dev: {
     env: devEnv,
     port: 8080,
+    autoOpenBrowser: true,
     assetsSubDirectory: 'static',
     assetsPublicPath: '/',
     staticAssetsDirectory,