Fixing indexSpec e2e test and creating 2 unit tests for the directives: parallaxImage and content
Refactoring: There is a centralized service that observes scroll changes and triggers the action to be carried on. Drectives are listening to those actions and they just modify their DOMs. Also the check of the URL has been moved to a service. At the run block those 2 new services are called. Easier to test now the scrolljng behaviour having the code in a service.