firefox: fix stupid build error when SHELL is not exported
busybox: build ip tool with link option
icu: sanitize
tcl: remove nearly endless compile of embedded sqlite
gst01-plugins-base: debloat build
firefox: bump to 27.0.1
rc.local: add template for simple nat router
kernel config: enable some things to make wireless usable

rfkill is needed for wpa supplicant, wext to be able to scan
and similar elementary things.
mac80211 is needed for almost any modern driver.
hostap is a prerequisite for lib80211 which provides the
basic wlan crypto primitives.
additionally we enable some usb wifi chipsets.
kernel: bump to 3.13.3