Merge pull request #604 from davidvossel/master

systemd msg queue fixes
Merge pull request #605 from davidvossel/master

resource-discovery=exclusive implies rsc can only run on exclusive subset of nodes
Build: services: Conditionally clean up services actions
Low: lrmd: fix regression test LSBdummy install
Merge pull request #608 from davidvossel/master

resource-discovery documentation and fixes
Merge pull request #607 from gao-yan/services-action-conditional-cleanup

Build: services: Conditionally clean up services actions
Merge pull request #609 from davidvossel/fix-travis

Low: lrmd: fix regression test LSBdummy install