Updated openstack/openstack
Project: openstack/cinder  2fd09c4b74b98aae6656f2fc56448f31d851a82b
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Fallback to None on missing Glance image attrs

It's possible for glance images to be missing attributes like name and
checksum. We'll just set those to None by default to avoid missing key
exceptions being raised.

Closes-Bug: #1308058
Change-Id: I85c42f8351763da201021a22f5ff0ebd62c6b2db