I didn't actually add or change any functionality this commit. I mainly just updated/ported the stuff from the old jQuery 1.7.2 to 2.0.3, with the one main change between version of "$(document).on('click', 'a[data-reveal-id]', function(e)" in the jquery.reveal.js plug-in even though we don't even use it.
Also if you check out any benchmark of .attr vs .prop function calls on jsperf.com or another place, .prop always beats the attribute access times so hopefully it's a free win of upgrading jQuery to v2 which also drops legacy Internet Explorer support :P
I did use the Migrate Plug-in include: https://github.com/jquery/jquery-migrate/#readme to make sure it was all in working order which is why I added the DOCTYPE's to the top and fixed the reveal .live call format.
For jQuery-UI since you only included it to get sortibility but included everything, so I made a custom build of jQuery-UI with only Sortable + its dependencies included, which shaved off 200KB alone.