Ticket #262 - pid file not removed with systemd
    
    https://fedorahosted.org/389/ticket/262
    Resolves: Ticket #262
    Bug Description: pid file not removed with systemd
    Reviewed by: nhosoi (Thanks!)
    Branch: master
    Fix Description: The PIDDIR directive was problematic - just use the full
    path to the pid dir.  Add the ExecStopPost directive to remove the .pid
    file after shutdown.
    Platforms tested: Fedora 16
    Flag Day: no
    Doc impact: no