Changes since tag 2.4.18

commit 240603a2e65152655aa9be644f9cfab82ab8b7ae
Author: Infus <infus@squorn.de>
Date:   Wed Aug 30 08:54:13 2017 +0200

    Fix lua errors for timers with a too long duration
    
    Don't start timers that are longer than a week.
    
    Ticket-Nr: 1036
    Ticket-Nr: 1034

