Gtk2 gnuradio misc

This PR includes gnuradio, pygtk2, gtk2 and a number of small changes

gtk2 is compiled up with a minimal set of dependencies and has only been tested on ubuntu precise. It is unlikely that at this point in time that gtk2 will work correctly on OSX/Windows at this point in time.

pygtk appears to compile up and load however gnuradio does not seem to find pygtk and thus gnuradio's gui is not built. gnuradio should function headlessly.

https://github.com/hashdist/hashstack/pull/427 might be a good test to see if firefox will build with this PR.