Moves Bin model and route to correct file paths
Change API to model Ember.js's data adapter

- Removes /api/bins/:bin_id/requests/:request_id
- Adds /api/requests/:request_id
Changes route /bin/:id to be /bins/:id

Be more consistent.
Removes layout when responding to logged request
Adds request/:id route and handlebars to display
Adds twitter-bootstrap-rails gem
Updates to use Bootstrap layout