Changing the scheduler package to use *api.Pod instead of api.Pod to

avoid unnecessary shallow copies. The change rippled through a lot of
code.

pkg/kubelet/types.go

@@ -64,7 +64,7 @@ const (
 // functionally similar, this helps our unit tests properly check that the correct PodUpdates
 // are generated.
 type PodUpdate struct {
-	Pods   []api.Pod
+	Pods   []*api.Pod
 	Op     PodOperation
 	Source string
 }