Ticket 47805 - syncrepl doesn't send notification when attribute in search filter changes
    
    Bug Description:  if an entry is modified so that it no longer matches
    			the search filter specified in teh sync repl
    			request a delete info should be sent
    
    Fix Description:   check pre and post entry for mods to determine if an entry
    			moves in or out of scope. Same logic as modrdn
    
    https://fedorahosted.org/389/ticket/47805
    
    Reviewed by: Mark, thanks