Added signal method to Action and moved ActionProc here
Added signal method to Action and moved ActionProc here

The ActionProc is a common procedure that is shared by all actions.
Conceptually, it should be moved here.

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