Add short id support to cluster-policy-list
Add short id support to cluster-policy-list

We are supposed to support short IDs everywhere for consistency. This
patch fixes the cluster-policy-list command.

Change-Id: I5a040ff928d5d953674d66b86975788600c59f9b
Closes-Bug: #1520863

stackforge/python-senlinclient,stackforge/python-senlinclient,openstack/python-senlinclient,openstack/python-senlinclient