gondor/openstack4j — pull request #37 by octupszhang (2014-08-11 11:37:12+00:00)
Title: add a detaching volume funtion

add a detach volume function, require serverId, attacmentId, then delete this attachment. add a function 'getAttachments()' in class Volume,return an list of attachment object contains device,hostname,id,server_id,volume_id