Modified python scripts to work on systems with python 3 as default

Arch Linux currently uses python 3 as the default. To alleviate some of my own heart-ache I've had with that, I switched the #! /usr/bin/env python to require python2.  I have tested this on Arch Linux (current), Ubuntu 12.04, Red Hat 6, and OpenSUSE 12.3, all of them have python2 and python symlink'ed so the behavior should be the exact same as it was before and this change completely transparent to the user.