[Tachyon-list] Mozilla talk converted to beamer

I finished converting the talk we gave to Mozilla to beamer. I tried to keep the style of the existing talk as much as possible. The required packages should be installed by default if you have a recent tex distribution. I created a "talks" directory in the main tachyon repository. It is probably a good idea to create your own .tex files in the "slides" directory to minimize conflicts and merging before wednesday.

Bruno