Fixed profile update API incorrect behaviors
Fixed profile update API incorrect behaviors

Some parameters are optional, we should not enforce a strict checking on
them.

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