Merge branch 'cinder-backends' into dt-test
Merge branch 'add-pre-install' into dt-test
Merge branch 'reorder-stack.sh' into dt-test
Merge branch 'new-ceph-backend' into dt-test
Merge branch 'test-ini-improvements' into dt-test
Merge branch 'usb-prereq' into dt-test
Merge branch 'conf-tempest' into dt-test