Right now, our doc generation scripts notice if you make changes and
don't regen docs, don't include new docs, etc. But they miss it if your
changes should have REMOVED a doc. Both kubectl-apiversion and
kubectl-clusterinfo should have been removed, but weren't.
This patch starts tracking all generated doc files and will cause
problems if files should be removed and aren't.
The User's guide is for anyone who wants to run programs and services on an exisiting Kubernetes cluster.
The Cluster Admin's guide is for anyone setting up a Kubernetes cluster or administering it.
The Developer guide is for anyone wanting to write programs that access the kubernetes API,
write plugins or extensions, or modify the core code of kubernetes.