Updated openstack/openstack
Project: openstack/nova  601b55f8f18ceb88f99254596d835fd60e067268
null
Missing catch InstanceNotFound in v3 API

After apply instance look helper, some compute api
will invoke instance.save(), it will raise
InstanceNotFound also.
This patch adds them.

Closes-Bug: #1280067
Change-Id: I73cb35c90f1e46a447ae1807a997713105e08bde