Updated openstack/openstack
Project: openstack/requirements  65a913ef036de59ad84a7fb369a5e6df93bb5ac0
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Update python-keystoneclient to 0.7.0

A new version of keystoneclient was released containing changes we
wish to use in Horizon, so bump to the latest version.

Change-Id: I4c4a4db30108d82a56927aa9983f7736b038d435