chore(package): update nock to version 3.4.0

http://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -63,7 +63,7 @@
     "istanbul": "^0.4.0",
     "jshint": "^2.8.0",
     "mocha": "^2.3.4",
-    "nock": "^3.0.0",
+    "nock": "^3.4.0",
     "qs": "^5.2.0"
   },
   "dependencies": {