Added babel polyfill and lodash

.babelrc

@@ -1,9 +1,12 @@
 {
   "presets": ["react", "es2015", "stage-0"],
-  "plugins": ["transform-decorators-legacy"],
+  "plugins": [
+    "lodash",
+    "transform-decorators-legacy"
+  ],
   "env": {
     "development": {
       "presets": ["react-hmre"]
     }
   }
-}
+}

package.json

@@ -28,8 +28,9 @@
     "babel-core": "6.10.4",
     "babel-eslint": "6.1.0",
     "babel-loader": "6.2.1",
+    "babel-plugin-lodash": "^3.2.6",
     "babel-plugin-transform-decorators-legacy": "1.3.4",
-    "babel-polyfill": "6.7.4",
+    "babel-polyfill": "^6.7.4",
     "babel-preset-es2015": "6.3.13",
     "babel-preset-react": "6.3.13",
     "babel-preset-react-hmre": "1.0.1",

webpack.config.prod.js

@@ -9,6 +9,7 @@ productionWebpackConfig = Object.assign(commonWebpackConfig, {
   cache: true,
   devtool: 'cheap-module-source-map',
   entry: [
+    'babel-polyfill',
     'babel-regenerator-runtime',
     './src/index',
   ],