Fixed issue with opacity being set to only 0.9999 for Opera, Safari, et. al - which it was, in fact a Mozilla issue (or, at least, it seems).

Updated the documentation parser to work with categories. Additionally, I updated the copyright notice in the jQuery header and removed some extraneous whitespace from jQuery Lite.

Added in a mess of AJAX fixes and optimisations, made possible by Taku Sano. On top of his patch I touched up some of the code, made some bug fixes, and added some additional functionality (including the ability to load and eval a remote script file.