chore(package): update babelify to version 7.3.0

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -17,7 +17,7 @@
   "devDependencies": {
     "babel": "5.8.29",
     "babel-eslint": "7.1.0",
-    "babelify": "6.4.0",
+    "babelify": "7.3.0",
     "chokidar-cli": "1.1.0",
     "eslint": "3.9.1",
     "mocha": "3.0.2"