Upgrade babel

.babelrc

@@ -1,5 +1,6 @@
 {
   "presets": [
+    "env",
     "es2015",
     "react"
   ]

package.json

@@ -31,10 +31,13 @@
     "async": "~1.5.0",
     "aws-sdk": "~2.2.26",
     "axios": "0.15.x",
-    "babel-core": "~6.7.6",
-    "babel-loader": "~6.3.0",
-    "babel-preset-es2015": "~6.22.0",
-    "babel-preset-react": "~6.23.0",
+    "babel-cli": "~6.24.1",
+    "babel-core": "~6.24.1",
+    "babel-loader": "~7.0.0",
+    "babel-polyfill": "~6.23.0",
+    "babel-preset-env": "~1.4.0",
+    "babel-preset-es2015": "~6.24.1",
+    "babel-preset-react": "~6.24.1",
     "basic-auth-connect": "~1.0.0",
     "body-parser": "~1.14.1",
     "bootstrap-sass": "~3.3.6",