Add preset 2015

Author: alex3165

package.json

@@ -28,6 +28,7 @@
     "babel-core": "^6.14.0",
     "babel-loader": "^6.2.5",
     "babel-plugin-transform-runtime": "^6.12.0",
+    "babel-preset-es2015": "^6.14.0",
     "babel-preset-react": "^6.11.1",
     "babel-preset-stage-0": "^6.5.0",
     "copy-webpack-plugin": "^3.0.1",