Fixed error in D3 JS for visualizing interactions in matrix. Added code to serve up the visualization as an inline frame
Updating bootstrap.sh to download NLTK ancillary packages. Updating chapters 4 and 5 with inline frames for visualizations
Simplifications to chapters 2-3 by using IPython Notebook's ability to serve local files instead of using Flask. Now, no content in the main chapters relies on Flask and the rather complex flow that came along with it to serve content. All of that is now in Appendix B
Updating notebook captions to better match text