added some notes
added output
added note
updated some text
deleted one bit that actually wasn't very interesting
Merge pull request #3 from johnchase/master

fixed a few typos.
starting to flush out the phylogeny reconstruction section
Merge branch 'master' of github.com:gregcaporaso/An-Introduction-To-Applied-Bioinformatics
some updates
expanded phylogeny section
some improvements for printing floats
added one note
expanded a lot of the material
finished upgma algorithm notes, added figures
fixed bug, cleared output
added output
updated one definition
cleaned up code a little bit
updated to use bipy objects
added some examples using SciPy's UPGMA - was going to implement this, but didn't get as far as I want, so just going to stick with SciPy