- cinder-api now runs under apache2 and no longer as systemd service
- cinder-volume needs explicit backend configuration
- don't install deprecated cinder v1 API endpoints
- clean up some config options
To be added in a follow-up:
- Make backend configuration more flexible
- Replace distro provided wsgi setup with our custom one
Change-Id: I77ac294fd8e1cd4e6bc39667ddfdea21c4daed8a