* treewide: http -> https sources
This updates the source urls of all top-level packages from http to
https where possible.
* buildtorrent: fix url and tab -> spaces
This commit adds the firmware for the Intel 2200BG wireless cards for
the ipw2200 kernel module. Also it changes the
networking.enableIntel2200BGFirmware option to set it as
hardware.firmware since firmware-linux-nonfree does not contain the
appropiate firmware anymore. Also hardware.enableAllFirmware does enable
the intel2200BGFirmware now.