Merge pull request #3412 from murgatroid99/node_version_0.11.1

Update Node module to 0.11.1 in anticipation of point release

src/node/package.json

 {
   "name": "grpc",
-  "version": "0.11.0",
+  "version": "0.11.1",
   "author": "Google Inc.",
   "description": "gRPC Library for Node",
   "homepage": "http://www.grpc.io/",