chore(package): update babel to version 5.8.29

http://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -51,7 +51,7 @@
     "semantic-release": "^4.3.5"
   },
   "dependencies": {
-    "babel": "5.8.23",
+    "babel": "5.8.29",
     "chalk": "1.1.1",
     "cz-conventional-changelog": "1.1.4",
     "dedent": "0.4.0",