Ajax content loading (jQuery version)

[GooseRockDesign]

I Added ajax content loading functionality to the jquery reveal plugin. I also cleaned up a lot of the code and the indentation.

List of squashed commits:

• Updated local jquery
• Added ajax content loading for jquery
• Abstraction!
• Lightboxen ought to be above everything
• Fixed a flickering bug on fade out
• Added "complete" events
• Added option to toggle close on escape key event
• Name change: reveal-path -> reveal-url
• Added ajax loader gif
• Option for escape key
• Improved indentation; fully fleshed out ajax loading with a loader and a custom "complete" event
• Added a slight visual effect to the ajax loading process

[shadowhand]

Personally, I would prefer that Reveal assume that attaching to an a[href] will load the referenced link, assuming it is not an #id anchor. Fancybox is the best example (imo) for how defaults should be determined based on the element that activates the modal.