Merge pull request #103 from arangodb/greenkeeper-babel-5.8.34

Update babel to version 5.8.34

Author: pluma

package.json

@@ -51,7 +51,7 @@
   },
   "devDependencies": {
     "async": "1.5.0",
-    "babel": "5.8.29",
+    "babel": "5.8.34",
     "babel-eslint": "4.1.5",
     "babelify": "6.4.0",
     "browserify": "12.0.1",