Added transitions to pages

You can now transition between page fragments.

Page fragments are auto-loaded based on their URL - I added two sample pages and an "indexcontent.html" file that mirrors index.html. This allows the header to remain static when transitioning pages. Works by jumping in the way of any "a" click. Can be fleshed out but proves a POC for the prototyping. 

You can adjust the transitions with "data-exit" and "data-enter." These work with: http://daneden.me/animate/

You can use any of his exit or entrance animations in order to transition between pages. I have it set to bounce in and out.