Updated openstack/openstack
Project: openstack/python-cinderclient  bdd560b3c02ea0a013ed4b7e7641c6240f3b602f
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Fix py33 due to readonly and metadata patches

A couple recent merges broke py33 - this fixes it.

Change-Id: Iaab8a08aeb42c954f3ecff7da70003d1c4eead0d