add an anygw dns record pointing to :0::1 ip
uhttpd listen on any protocol ipv4/ipv6
partially revert 'put br-lan address inside the same network as anygw...' since dnsmasq can't send RAs only for anygw when br-lan and anygw on same /64 network
don't prevent bmx6 syslog messages
publish through bmx6 both the :0::/64 (anygw/dhcpv6) and :1::/64 (br-lan) networks