Update node protobuf dependency to 3.0.0 where applicable. Also update example dependency to grpc 1.0.0
diff --git a/package.json b/package.json
index 3541064..ac936fe 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
   "devDependencies": {
     "async": "^1.5.0",
     "google-auth-library": "^0.9.2",
-    "google-protobuf": "^3.0.0-alpha.5",
+    "google-protobuf": "^3.0.0",
     "istanbul": "^0.3.21",
     "jsdoc": "^3.3.2",
     "jshint": "^2.5.0",