Add full versions of minified JavaScript. Fixes #400

I noticed the newer versions of gitit are not being accepted into Debian testing due to issue #400. I have attached the full versions of the JavaScript source code for JQuery and JQuery Hotkeys (and renamed the originals where appropriate).

For the packed JQuery UI JavaScript I unpacked this and scoured through the previous releases to find a match ([1.6rc2] (https://jquery-ui.googlecode.com/svn/tags/1.6rc2/ui/)). I then included the full source of the relevant JQuery library (i.e. core, draggable, droppable and tabs) and created a minified version of this.

Network/Gitit/Layout.hs and gitit.cabal have been updated to reference the changes above.