What's new in 6.0rc13 (2013-Apr-08 14):
*) pppoe, l2tp, pptp server - increased lcp retransmit count to 10;
*) pptp, l2tp & pppoe clients - added ability to specify keepalive timeout;
*) graphing - fixed problem were interface graphs are lost on reboot;
*) dhcpv6 - added relay;
*) sstp server - restore (disabled in rc12) test mode which allows
running server without certificate;
*) lcd - added option for turning backlight on/off;
*) bgp - fix med comparison check if routes are received from iBGP peer;
*) fixed simple queues - sometimes some simple queues did not limit traffic
(bug introduced in 6.0rc12);
*) allow to change arp timeout (in /ip settings);
*) added /ip neighbor discovery settings setting "default-for-dynamic" to control
discovery on new dynamic interfaces (off by default);
