gluon v2015.1.2 - Firmware 0.7.2 stable

a lot of bugfixes
http://gluon.readthedocs.org/en/v2015.1.2/releases/v2015.1.2.html

gluon v2015.1.1 - Firmware 0.7.1 stable

fix IPv6 prefix
fix some gluon bugs
add fastd performance mode
reduce VPN tunnel limit to 1 per VPN group