woohoo! reveal.js is now HTML5 compliant! 

this is validated using the http://validator.w3.org/ and the http://html5.validator.nu/ services.

this was accomplished using a tad of JavaScript to get around a fullscreen bug.

This also (slightly unintentionally but helpfully) solves a tiny bug with fullscreening in old Opera 11.52 (I think, could be 11.51 or other)

Typo fix: let's -> lets

themes are now available as separate css files under css/theme/, old theme option in config is no longer supported (closes #104)

I gave all the <img>s alt attributes, which makes reveal.js a lot more accessible

Must be called after reveal.js otherwise the Reveal object is undefined
and the plugin can't add it's event listener.

add beige theme, move theme class from .reveal to document element, use log instead of alert to demonstrate custom events