Fixes formatting
Introduces Tracker service that will collect user events to send to GAIN
Sends Tracker events in batches
Stores in the Model the screen id together with the user after initializing Eddie
Small Model refactoring
Renames addEvent with collect
Collects user events: login, logout, bookmark and play pause stop a certain video
Enables toggling of user tracking
Sends Tracker event trough Eddie
Removes Model and Tracker dependencies from Eddie
Sends user events to GAIN