Renamed some action names
Renamed some action names

ADD/DEL_MEMBER -> ADD/DEL_NODE

tengqm/senlin,stackforge/senlin,openstack/senlin,Alzon/senlin,Alzon/senlin,stackforge/senlin,openstack/senlin,tengqm/senlin,tengqm/senlin-container,tengqm/senlin-container,openstack/senlin