Ticket 48006 - Missing warning for invalid replica backoff
Description: Add warning if you try to set a min backoff time that is
greater than the configured maximum, or the max time that
is less than the minimum.
Also fixed compiler warning in ldbm_config.c
Reviewed by: firstyear(Thanks!)
(cherry picked from commit e123acb6987c75f6d7282b32c4f279b976eb6f5e)