EventRepository: Removed the count of events method and introduced the method that returns the timestamps of an event.
Introduced EventsAnalysis, which is used to display interpreted information to the user (instead of pure data).
AnalysedEvent: Introduced relevance.
SimpleEventsAnalysis: Relevance is now simply the count of the event.
EventTimestamps: removed (was not used).
Fixed a typo.
EventsAnalysis: now returns an already ordered list.
EventsAnalysis: relevance based on how recently the event was updated.