message: Removed deprecated dedupe plugin.
diff: @@ -67,17 +67,11 @@ const getWebpackConfiguration = function (configuration) {
  publicPath: configuration.basePath
  },
  plugins: [
  - // Set NODE_ENV to production in order for React to exclude its dev warnings.
  new webpack.DefinePlugin({
  __DEV__: false,
  'process.env.NODE_ENV': JSON.stringify('production')
  }),
  -
  - // Optimize chunk ids by occurrence count to reduce file size.
  new webpack.optimize.OccurrenceOrderPlugin(),
  -
  - // Search and merge all duplicate modules to reduce file size.
  - new webpack.optimize.DedupePlugin(),
  new webpack.optimize.UglifyJsPlugin({ compress: { warnings: false }})
  ],
  target: 'web'
  