Make "kubecfg -s <port> run ..." select correctly

kubecfg run creates a replication controller which sets all pods with a
replicationController= label, but then sets up a service selecting on name=
instead.  This fixes that.  kubecfg -s <port> run ... can now actually work.
rename labels in kubcfg logic
Merge pull request #1397 from thockin/kubecfg

Make "kubecfg -s <port> run ..." select correctly