Rename SUSE vars file to cater for any version

To make the transition between versions easier,
we rename the vars file. This also resolves
issues when meta-dependent role inclusions do
not pick up the correct file when using the
include_vars task with multiple search paths.

We also add the 'python-cursive' package to the
distro install package list as cinder requires
it, and the service packages have not yet got
it as a dependency in the spec.

Depends-On: https://review.openstack.org/602924
Change-Id: Ibb712b60757cf085cf794551ca5504e68977cd0a

vars/suse.yml

@@ -37,6 +37,7 @@ cinder_service_distro_packages:
   - openstack-cinder-scheduler
   - openstack-cinder-volume
   - python-openstackclient
+  - python-cursive
   - python-shade
   - python-systemd
   - uwsgi