- Removed modules, replacing them with a common global namespace
- Added Backbone.Radio as a new dependency
- Removed usage of Wreqr, replacing it with Radio
- Renamed TodoList.js to Router.js to more accurately reflect its
  function
- Moved all application initialization into TodoMVC.Application
- Moved FilterState code into its own file
- Removed inline script in index.html and moved inititialization code
  into TodoMVC.js