Merge pull request #4 from graysonwright/switch_to_sinatra

Use Sinatra to serve pages
Deletes the 2012 site content

We can always get the old content back using git if we really need it.
But we haven't needed it for two years...
Styling clean slate, use Bourbon & Neat for layout

See:
http://bourbon.io/
http://neat.bourbon.io/