Fix Mic input in Ubuntu

These modprobe.conf options make the Mic input work for my Toshiba Satellite:

options snd-hda-intel model=auto
options snd slots=snd-hda-intel


waf 1.6.2 cflags and pkgconfig tools

I have a couple of useful tools for waf that have just now ported to work with waf 1.6.2. Get them here. If you don't know what I'm talking about, nevermind.