* fix pods tracking and internal error checking in statefulset tests
* fix stateful set pod recreation and event spam
- do not emit events when pod reaches terminal phase
- do not try to recreate pod until the old pod has been removed from
etcd storage
* fix conflict race in statefulset rest update
statefulset controller does less requests per sync now and thus can
reconcile status faster, thus resulting in a higher chance for conflicts
85d55b6737