Revise functional test to adapt to latest API change
Revise functional test to adapt to latest API change

This patch revises functional test to adapt to latest change on
HTTP response code of some API interfaces.

Change-Id: I675b6e9d32ea13b69d7702fab7dbfe29f701b4a5

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