[Ready for Review] after role deactivation stop services and remove HA resources

Once that PR is reviewed and accepted, I can start to finish the feature for the other barclamps as well. 
So please have a look at this one, as it will be similar to the other barclamps.
I think you need something like

    crowbar_pacemaker_sync_mark "wait-remove_#{role_name}"

in order to avoid multiple nodes racing to remove the primitive at the same time.