Updated openstack/openstack
Project: openstack/nova  a26b3546b12f3c5a8b72fce0fab1e3a4e332eaca
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Adds V3 API samples for user-data

Adds V3 API sample tests and api samples for user-data

Partially implements blueprint v3-api-unittests
Partially implements blueprint v3-api-specification

Change-Id: I3a29490061632d7f728edcb942a061c3b65518bd