Automatic merge from submit-queue

add godep manifest files to staging repos

The staging repos should have manifests that match the godeps of kube so we know what they build against.  We don't need the actual vendored code, since a sync script on the other side needs to find the correct level of other staging directories and thus requires its own `godep restore && go get && godep save` cycle.

@sttts ptal
@lavalamp @caesarxuchao client-go needs a lot of unwinding to do something similar, but the idea is that you can run an acyclic path to get this updated by copying the types and dependencies with `go list`, then generate the clients, then generate this manifest.  Then in your sync script you can pull the proper levels and finish the actual vendoring.