VOL-1460 Updates to protos to match core and updates to go stubs.
Also added support to build with godeps.

Change-Id: I4b312a6dcf67e3a3f93f675da38da2ed5164e077
diff --git a/vendor/google.golang.org/grpc/AUTHORS b/vendor/google.golang.org/grpc/AUTHORS
new file mode 100644
index 0000000..e491a9e
--- /dev/null
+++ b/vendor/google.golang.org/grpc/AUTHORS
@@ -0,0 +1 @@
+Google Inc.