Updated openstack/openstack
Project: openstack/cinder  26b58e2c10011450725ae644b404fabb4b8b6b7f
null
Nexenta NFS driver refactoring

Refactor NFS driver, redefined volume_backend_name attribute
inherited from RemoteFsDriver.

Change-Id: I607277053c1233c688dbfaf0c5e150f9511b83af