modules/admin-full: change workflow of wifi config page; display only one network (choosen in wifi overview) and add a hook for section remapping 
on uci commit

LuCId: Send Keep-Alive headers to avoid browser quirks

nixio: store stats and other number information as integer, which works better when lua number support is downgraded from double to float

contrib/package: remote-update: now expect "openwrt-atheros-combined.img" since we switch to upstream combined images