Ticket #47516 replication stops with excessive clock skew
https://fedorahosted.org/389/ticket/47516
Reviewed by: nhosoi (Thanks!)
Branch: 389-ds-base-1.3.2
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)