chore(package): update multer to version 1.2.1

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -28,7 +28,7 @@
     "lru-cache": "4.0.2",
     "mime": "1.3.4",
     "mongodb": "2.2.10",
-    "multer": "1.2.0",
+    "multer": "1.2.1",
     "parse": "1.9.2",
     "parse-server-fs-adapter": "1.0.1",
     "parse-server-push-adapter": "1.1.0",