Merge pull request #114 from GoogleCloudPlatform/logging-deps

Add Missing Dependency

Author: jmdobry

logging/package.json

@@ -14,6 +14,7 @@
     "export": "node export.js"
   },
   "dependencies": {
+    "async": "^1.5.2",
     "express": "^4.13.4",
     "fluent-logger": "^1.1.0",
     "gcloud": "^0.30.3"