Add entries to bibliography.
Touch up details.

Add URL for innovate to first day's list.
Note "final exam week" completed.
Switch MarkDown interpreter from Maruku to Kramdown.

GitHub's help (https://help.github.com/articles/migrating-your-pages-site-from-maruku)
and the Kramdown syntax documentation (http://kramdown.gettalong.org/syntax.html) both
say that Kramdown syntax is so similar to Maruku's that there should be no discernible
differences.

I've scanned all the top-level pages and don't see any problems since the changeover. There
may be some formatting issues in the daily pages (Week*-Day*).