Drop bibliography generation, Simplify home-page generation

The current method for updating the webpage is a few steps too many, I'd like to make it easier.  One source of complication has been the plug-in I had used to generate bibliographies, jekyll-scholar. Since last August, Jekyll has grown up some as a project, and the plugin no longer plays nicely with it (or possibly with the version of Ruby which comes stock with OS X, either way it's not working as hoped).

__Changes:__
  1. Minor changes to ```_config.yml``` to bring it up to speed with Jekyll 1.0. (This mostly consisted of dropping unnecessary lines).
  2.  Switched the Markdown parser to Redcarpet, jekyll's default messed with the way lists were rendered.
  3. Dropped Jekyll-Scholar. This is the big one, all bibliographies will now need to be entered by hand. This is a minor trade-off I think given that it leads to the next one:
  4. Moved the entire page into the ```gh-pages``` branch. This is the really big simplification. We no longer need to use two git branches to track the webpage's source and the compiled page separately. Since this page can be run in "safe" mode, Github will compile the page for us.


I still need to update the webpage README to reflect the changes made, and outline an editing workflow, but I should have this done later today.