message: use hashed names
diff: @@ -24,7 +24,7 @@ let config = {
  },
  output: {
  path: path.join(__dirname, '/../', 'assets'),
  - filename: 'js/[name].js',
  + filename: 'js/[name]-[hash].js',
  publicPath: '/assets/'
  },
  resolve: {
  