Bioinformatics python capstone lesson

This lesson is intended to be a 1.5 hour demo that will sit at the end of a novice python bootcamp and show learners how to apply some of their new skills to bioinformatics. Currently work in progress, contributions/suggestions very welcome!
Why forking?
I think we could move it away from git a bit, and make it work for Mercurial based camps as well. Could suggest git clone to "download data", or alternate options? Makes it more generally portable.