Updated openstack/openstack
Project: openstack/nova  d2e38d3ec46a0f7f08c0ab630098b4a0aa1ac1ff
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Add super call to db Base class

Without this call, multiple inheritance involving the db Base
class does not work correctly.

Change-Id: Iac6b99d34f00babb8b66fede4977bf75f0ed61d4