Updated openstack/openstack
Project: openstack/nova  d15607045bcf1fb7f637d125f9eec1c7f39bfcac

Convert v3 hypervisor plugin to v2.1

This patch convert v3 hypervisor plugin to v2.1 and makes v2
unit tests share between v2 and v2.1.

Unit tests has been modified in optimized way.

The differences between v2 and v3 are described on the wiki page
https://wiki.openstack.org/wiki/NovaAPIv2tov3.

Partially implements blueprint v2-on-v3-api

Change-Id: I23ffc10d4c0170cb43ef8aeebf69ae2794a08827