Add 'cancel' registration feature
Add 'cancel' registration feature

And add checks for vendor type in actions

Change-Id: Icce7ff9d5c628ff51804a30fc28e17b37cf8b61b

stackforge/refstack,openstack/refstack,stackforge/refstack,openstack/refstack,openstack/refstack,openstack/refstack,stackforge/refstack,stackforge/refstack