Chapter 7: Add ActivityRoute to the Router.
Chapter 7: Add the activity.hbs template.
Chapter 7: Create ActivityRoute; add model hook and call to the Ember Store to ActivityRoute.
Chapter 7: Add link-to helper to activity link in application.hbs.
Chapter 7: Add the Activity model.
Chapter 7: Add fixture data for the Activity model.
Chapter 7: Update search-results.hbs template with viewedArtist and viewedSong actions instead of link-tos.
Chapter 7: Update SearchResultsController to include viewedArtist and viewedSong actions.
Chapter 7: Update SearchResultsController to include transitionToRoute.
Chapter 7: Install the LocalStorageAdapter.
Chapter 7: Switch from the FixtureAdapter to the LocalStorageAdapter.
Chapter 7: Scope the LocalStorageAdapter to the Activity model.
Chapter 7: Add an Application Initializer to seed the Ember Data Store with 300 activities.