deps: update mongodb@2.2.16

Author: hex7c0

package.json

@@ -27,7 +27,7 @@
     "bson": "1.0.1",
     "graceful-fs": "4.1.11",
     "logger-request": "3.7.3",
-    "mongodb": "2.2.15",
+    "mongodb": "2.2.16",
     "tar": "2.2.1"
   },
   "devDependencies": {