Node deletion error

[Haiwei Xu]

Currently when deleting a node which is in ACTIVE state, will get this error:

Traceback (most recent call last):
  File "/opt/stack/senlin/.tox/py27/local/lib/python2.7/site-packages/eventlet/hubs/hub.py", line 457, in fire_timers
    timer()
  File "/opt/stack/senlin/.tox/py27/local/lib/python2.7/site-packages/eventlet/hubs/timer.py", line 58, in __call__
    cb(*args, **kw)
  File "/opt/stack/senlin/.tox/py27/local/lib/python2.7/site-packages/eventlet/greenthread.py", line 214, in main
    result = function(*args, **kwargs)
  File "/opt/stack/senlin/senlin/engine/actions/base.py", line 455, in ActionProc
    result, reason = action.execute()
  File "/opt/stack/senlin/senlin/engine/actions/node_action.py", line 117, in execute
    res, reason = self._execute(node)
  File "/opt/stack/senlin/senlin/engine/actions/node_action.py", line 83, in _execute
    result, reason = method(node)
  File "/opt/stack/senlin/senlin/engine/actions/node_action.py", line 44, in do_delete
    res = node.do_delete(self.context)
  File "/opt/stack/senlin/senlin/engine/node.py", line 268, in do_delete
    res = profile_base.Profile.delete_object(context, self)
  File "/opt/stack/senlin/senlin/profiles/base.py", line 147, in delete_object
    return profile.do_delete(obj)
  File "/opt/stack/senlin/senlin/profiles/os/heat/stack.py", line 168, in do_delete
    while not self._check_action_complete(obj, 'DELETE'):
  File "/opt/stack/senlin/senlin/profiles/os/heat/stack.py", line 133, in _check_action_complete
    reason=msg)
ResourceStatusError: The resource 731ebbc3-a119-4cea-acb7-7b26cb934202 is in error status - 'CREATE_COMPLETE' due to 'Node action mismatch detected: expected=DELETE actual=CREATE'.

And the node deleting will stay in DELETING state, can't be removed, though physical object can be removed properly.
This is because when deleting a heat stack, senlin excepts heat stack changes to DELETE_IN_PROCESS very fast, but heat just needs a little time to change the status .