Add babelrc support for async/await

.babelrc

 {
     "plugins": [
         "syntax-dynamic-import",
+        "transform-async-to-generator",
         "transform-object-rest-spread",
         ["react-intl", {
             "messagesDir": "./translations/messages/"

package.json

@@ -35,6 +35,7 @@
     "babel-loader": "^7.0.0",
     "babel-plugin-react-intl": "2.3.1",
     "babel-plugin-syntax-dynamic-import": "6.18.0",
+    "babel-plugin-transform-async-to-generator": "^6.24.1",
     "babel-plugin-transform-object-rest-spread": "^6.22.0",
     "babel-preset-es2015": "^6.22.0",
     "babel-preset-react": "^6.22.0",