Syncing versionutils from oslo-incubator
Syncing versionutils from oslo-incubator

This is to fix deprecation warnings caused by a fact that version
that's currently in Cinder imports oslo.config instead of
oslo_config.

Change-Id: Iaf0bea76e5bb389cb052de1ecb34a8b24ae39343
Closes-Bug: 1436270

nexusriot/cinder,Datera/cinder,potsmaster/cinder,sasukeh/cinder,rakeshmi/cinder,mahak/cinder,takeshineshiro/cinder,tlakshman26/cinder-new-branch,cloudbase/cinder,j-griffith/cinder,openstack/cinder,eharney/cinder,j-griffith/cinder,ge0rgi/cinder,Hybrid-Cloud/cinder,duhzecca/cinder,tlakshman26/cinder-new-branch,scality/cinder,CloudServer/cinder,potsmaster/cinder,nexusriot/cinder,bswartz/cinder,JioCloud/cinder,manojhirway/ExistingImagesOnNFS,eharney/cinder,leilihh/cinder,Hybrid-Cloud/cinder,sasukeh/cinder,rakeshmi/cinder,winndows/cinder,NetApp/cinder,phenoxim/cinder,Nexenta/cinder,mahak/cinder,manojhirway/ExistingImagesOnNFS,takeshineshiro/cinder,cloudbase/cinder,nikesh-mahalka/cinder,apporc/cinder,openstack/cinder,petrutlucian94/cinder,julianwang/cinder,dims/cinder,leilihh/cinder,tlakshman26/cinder-bug-fix-volume-conversion-full,tlakshman26/cinder-bug-fix-volume-conversion-full,duhzecca/cinder,bswartz/cinder,tlakshman26/cinder-https-changes,scottdangelo/RemoveVolumeMangerLocks,petrutlucian94/cinder,Paul-Ezell/cinder-1,Datera/cinder,Nexenta/cinder,NetApp/cinder,saeki-masaki/cinder,scottdangelo/RemoveVolumeMangerLocks,Paul-Ezell/cinder-1,JioCloud/cinder,scality/cinder,nikesh-mahalka/cinder,saeki-masaki/cinder,julianwang/cinder,tlakshman26/cinder-https-changes,CloudServer/cinder,phenoxim/cinder,dims/cinder,apporc/cinder,winndows/cinder