Updated openstack/openstack
Project: openstack/nova  0c7dce1237d7cb6037218a0bc761daeff67f0a3a

Add obj_set_defaults() to NovaObject

This provides a way to set the default values on fields that have them.
Previously, defaults were only set on nullable fields when set to None,
which wasn't universally-useful.

Related to blueprint kilo-objects

Change-Id: Ie646c0363d4af22ec8a588a6a1567c30bab99ebb