Switch to RemarkJS

This will move us to remarkJS instead of deck js for the slides.  They present code a LOT better, and working in markdown is much easier too.  The only problem is I could not get the test to run and switch slides.  The keypress just doesn't get picked up by nodejs even listener.  It might be possible to hit the listener directly, but I wasn't able to find the right JS path into the internals of remark.  

@stopfstedt - take a look at the switch test if you have some time - otherwise I'm just going to merge this as is tonight so we can both write our slides in the new markdown and we can solve the test problem if we get to it before the presentation.