Ticket 48747 - dirsrv service fails to start when nsslapd-listenhost is configured
    
    Thanks for the discussions to
    According to these discussion with Lukas Slebodnik <lslebodn@redhat.com> [1] and
    William Brown <wibrown@redhat.com> [2], replacing network.service with network.target
    and network-online.target.
    [1] https://fedorahosted.org/389/ticket/48747#comment:6
    [2] https://fedorahosted.org/389/ticket/48747#comment:10
    
    Also, let systemd.group.in have the same After= line as the individual service.
    
    Finally, this changes the dependencies of network.target to network-online.target
    which in some cases may be a stricter requirement.
    
    https://fedorahosted.org/389/ticket/48747
    
    Author: nhosoi, wibrown
    
    Review by: nhosoi (Thanks!)