ipactl can not restart ipa services if current status is stopped
    
    fixed by starting the directory server when restarting if it is not
    currently running to enable fetching running services
    
    later restart didn't check that
    
    also added a check, that if the directory server started at the
    beginning, there is no need to restart it
    
    https://fedorahosted.org/freeipa/ticket/4050
    
    Reviewed-By: Martin Kosek <mkosek@redhat.com>