Update to Angular 1.0.2

Had to do a lot of stuff to get it working. Wish I had split this up into more commits but was just hacking away at it, learning Angular along the way.

I added pry as a debugging tool for the Rails server. I removed Spork since I couldn't get it working and it seems like unnecessary overhead for such a tiny project.

I added Underscore.js for array manipulation since `angular.Array` has been removed from Angular as far as I can see.

I split the routes from the controller and put them into 'app.js'. I also used modules for each component as the Angular tutorial does.

I upgraded angular-mocks as well and fixed the tests.

Please let me know if you have any questions!