Removed app since it is not a module
Renamed files to index, added dustjs and marionette dust plugin
Removed global variables from index.app
Defaulted to dustjs templating, decoupled views from controller

- Opted to use dustjs instead of handlebars. Added the dustjs plugin for
  Marionettejs
- Moved view definition to their own folder and added them as a dependency
  in before starting the module controller.
- Views are aware of their templates, modules are aware of their views.
  Higher decoupling.