Add project/case study page

* Reset scroll to top on routing to case study page
  * Add ResetScrollMixin
  * Resets the scroll position to (0,0) on route change
http://emberjs.com/guides/cookbook/user_interface_and_interaction/resetting_scroll_on_route_changes/

* Add Marked for markdown parsing
* Add example images... as an example.
* Appease JSHint
  * Use `Ember.$.` for jQuery because Ember
  * Ignore 'unnecessary semicolon' warning because lawlz, I'm using
    coffeescript
* Set rendered markdown content in project route
  * Most likely a naïve implementation.
  * This probably should be done in the project controller.
  * ¯\_(ツ)_/¯