Constraints 2014 slides

Here are my slides for tomorrow's call.

Please bear in mind that they don't reflect Justin's reasonable 
suggestion to divide things explicitly into video and audio.

I am totally open to such renaming, but it doesn't functionally impact 
my presentation, so I think I'll present it as I have it, and hopefully 
we can discuss names at the end (I may come with a backup slide-deck).

I hope that works for everybody.

.: Jan-Ivar :.