Ticket #47516 replication stops with excessive clock skew
    
    https://fedorahosted.org/389/ticket/47516
    Reviewed by: nhosoi (Thanks!)
    Branch: master
    Fix Description: The previous fix was not adequate.  Instead, the determination
    of whether or not to ignore time skew should be determined in
    csngen_adjust_time().
    Platforms tested: RHEL6 x86_64
    Flag Day: no
    Doc impact: yes - document new config param