Link all the ReplicaSet controller boilerplate together.

1. Enable replica set in controller manager.
2. Enable replica set etcd storage in master package.
3. Add replica set support to kubectl commands.

pkg/controller/namespace/namespace_controller.go

@@ -234,6 +234,12 @@ func deleteAllContent(kubeClient clientset.Interface, versions *unversioned.APIV
 				return estimate, err
 			}
 		}
+		if containsResource(resources, "replicasets") {
+			err = deleteReplicaSets(kubeClient.Extensions(), namespace)
+			if err != nil {
+				return estimate, err
+			}
+		}
 	}
 	return estimate, nil
 }
@@ -538,6 +544,20 @@ func deleteIngress(expClient extensions_unversioned.ExtensionsInterface, ns stri
 	return nil
 }
 
+func deleteReplicaSets(expClient extensions_unversioned.ExtensionsInterface, ns string) error {
+	items, err := expClient.ReplicaSets(ns).List(api.ListOptions{})
+	if err != nil {
+		return err
+	}
+	for i := range items.Items {
+		err := expClient.ReplicaSets(ns).Delete(items.Items[i].Name, nil)
+		if err != nil && !errors.IsNotFound(err) {
+			return err
+		}
+	}
+	return nil
+}
+
 // TODO: this is duplicated logic.  Move it somewhere central?
 func containsVersion(versions *unversioned.APIVersions, version string) bool {
 	for ix := range versions.Versions {