chore(package): update babel-cli to version 6.18.0 (#369)

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -49,7 +49,7 @@
   "license": "MIT",
   "devDependencies": {
     "axios": "0.15.2",
-    "babel-cli": "6.16.0",
+    "babel-cli": "6.18.0",
     "babel-core": "6.17.0",
     "babel-preset-es2015": "6.13.1",
     "babel-preset-stage-2": "6.17.0",