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Latest Devstack is not compatible with Tempest version used by Manila after merge of commit [1]. Therefore, bump Tempest's version and fix incompatibilities with plugin. [1] I63658b8d8dfa999e0feb79f8f2968f2b32e3ff57 Change-Id: Ib6fb886f8a17ff6419fd75db74f290f821a3d302