Minor edits to organizers list.
Add infrastructure for this directory to be a Jekyll site.  Theme customization TBD.
Fix links to MD files to use the Jekyll link style.
Ignore generated files from the Jekyll config.
FIrst pass at a Twitter-Bootstrap theme for the site.  Posts are not working yet.
Fixed page navigation links in menus.
Changed background to use starry night image.
Improved font and background colors to match background image.
Getting session categories to display on index page.

Using the Jekyll posts mechanism to have an extensible set of sessions that can be added over time.
New session proposal descriptions, plus a template for new sessions.
Renamed metadata annotation session.
Fixed category typo so it parses properly.
Reorganized index page, moved sessions up to the top, added Activity descriptions.
Better layout for sponsor logos.
Added Jekyll-Bootstrap config, fixed menus to archives.
Reformatted bulleted lists on index page.
Fixed Source links in footer.
Upgraded to font-awesome 4.1.0, and updated icons.
Removed extraneous include files for old sidebar, and rewrote session description.
Removed unneeded Google font.