modules: make most remaining hardcoded strings translatable, patch by "BasicXP" <basicxp@ubuntu.com>

libs/sys: fix getiwinfo() for "radioX.networkY" notation if the target network is not yet committed to uci

contrib/freifunk-policyrouting: Make it work with trunk, remove unnecessary setup of network route for the local network at wan

proto/6x4: cast 6to4 adv_interface to string when saving to uci, fixes 6in4.sh not picking up the adv interfaces