Google Analytics integration

@arthurbenemann, the SDK is integrated within the app, and by default, records activities' screen views.
You should have received an email giving you access to the Google Analytics console for the app. Since this is not public yet, there won't be much data to see for now. 
Though, by installing this patch on your device, you should be able to see 'Real-Time' (delayed in reality) reports generated by your device, under the 'Reporting' -> 'Real-Time' -> 'Overview' section.

The next phase for this feature is to decide what type of metrics are we interested in recording from the app.