Merge pull request #363 from ilyjs/ilyjs_15_02

add es2015

Author: kirjs

demo/webpack.config.js

@@ -13,7 +13,7 @@ module.exports = {
                     loader: 'babel-loader',
                     query: {
                         cacheDirectory: true,
-                        presets: ['react', 'es2015', 'stage-2']
+                      presets: ['env', 'react', 'stage-2'],
                     }
 
                 }]