Add more check to node functional test
Add more check to node functional test

This patch add node index and cluster desired_capacity check in
node functional test.

Change-Id: Ifc40c303a3786422e02ee0dfc8befc820b674194

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