Move Deployments to ReplicaSets and switch the Deployment selector to the new LabelSelector.

Update the Deployments' API types, defaulting code, conversions, helpers
and validation to use ReplicaSets instead of ReplicationControllers and
LabelSelector instead of map[string]string for selectors.

Also update the Deployment controller, registry, kubectl subcommands,
client listers package and e2e tests to use ReplicaSets and
LabelSelector for Deployments.

extensions/deployment.yaml

@@ -7,7 +7,8 @@ metadata:
 spec:
   replicas: 3
   selector:
-    name: nginx
+    matchLabels:
+      name: nginx
   template:
     metadata:
       labels: