Updated openstack/openstack
Project: openstack/nova  34dfcb732b34af71cad98dc5ec2981b2273c23d6
null
Add v3 api samples for availability_zone

This patch adds api sample tests and api samples for availability_zone.
Because the detail's response use host name as the key of dict and samples
tests didn't support replacing key with variable, so startup nova's service
with specific hostname instead of uuid.

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

Change-Id: I9090a73a8293f26d63744a10d7ffbfc887e37e7c