jenkins: Sync trackupstream job from ci.o.o

Sync latest version of openstack-trackupstream from jenkins to git.
Changes:
 - Remove <hudson.security.AuthorizationMatrixProperty>
 - Remove openstack-sahara and python-saharaclient
 - Added openstack-manila and python-manilaclient
 - Update CombinationFilter
 - Run job sequentially
Then please create another PR with your updated configuration. I'll close this one then.