Version 3.0.1 - Logging out now removes everything the app kept on this device: the cached timetable and grades, scheduled lecture reminders, notifications that were already shown, downloaded documents and whatever the widget was still displaying. Nothing of the previous account is left behind for the next person to log in. The demo account now has grades from three semesters, and its documents can be opened and saved like real ones. Fixes the grades screen telling the demo account that its session had expired.
