Updated openstack/openstack
Project: openstack/nova  e893887230b2f3cc5fa451515e7efbab2d15af2f
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Add flavor access methods to Instance object

This adds a native interface to the Instance object to get, save, and
delete either the main or stashed flavors. This will let us migrate
code away from flavors.py and also provide us a versioned method to
handle conversion of flavors, flavor extra specs, and system_metadata
to the JSON blob that we have planned.

Related to blueprint compute-manager-objects

Change-Id: I13a4903460b05798e9c95b2148fe93e4963d6361