 69df608fbe
			
		
	
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			This patch changes v3 attach_interface API to v2.1 and makes v2 unit tests share between v2 and v2.1. 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: If18676604edc8fea41d7888eb6546245163e91c2