Updated openstack/openstack
Project: openstack-dev/devstack  327afc9962f513830975259369983875cc01a4f8

Use new cafile option in nova cinder options

ca_certificate_file is deprecated in favour of using the standard
options from keystoneclient session.

Change-Id: I611da719fb3a95d0a9c2f6ad43e2c083ea7d6862