Updated openstack/openstack
Project: openstack/nova  aba2656f3ddbee1b8f4da7381b496bbab37e23e5
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Add Network object

This adds a Network object to provide services and modeling
for nova-network and its use of the current SQLAlchemy Network
model.

Related to blueprint nova-network-objects

Change-Id: I7f943cda32fc98b3b03cdbb5d68e0c741053afaa