chore(package): update dependencies (babel#298)

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -20,9 +20,9 @@
     "babel-preset-es2015": "^6.0.0",
     "expect.js": "^0.3.1",
     "istanbul": "^0.4.0",
-    "jscs": "^2.5.0",
+    "jscs": "^3.0.7",
     "jshint": "^2.8.0",
-    "mocha": "^2.3.3",
+    "mocha": "^3.0.2",
     "rimraf": "^2.4.3"
   },
   "scripts": {