Ticket #47516 replication stops with excessive clock skew
    
    https://fedorahosted.org/389/ticket/47516
    Reviewed by: nhosoi (Thanks!)
    Branch: 389-ds-base-1.3.1
    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
    (cherry picked from commit 9f2b104b0938b21d7c9fe37c736d0e6328843aeb)
    (cherry picked from commit a6ec074c6295a59938f313b4fe09430e8f601fab)
    (cherry picked from commit 51c1b2a0e4245b90f418f9f909c1d17c564f77f3)