Added an event builder (for easier parsing from JSON and other storage formats).
The event repository backup system now uses a new JSON format.
Removed old logging messages.
Added a tech TODO note.
Extracted change notification from the event repository.
Verified the functionality of change notifier.
Added a TODO.
Added the event detail activity.
Organised EventDetail.
Event detail now displayed only when clicking on the event name.
Event detail now fetches the event from the event repository.
Updated the TODO list.
First attempt at displaying the frequency in the detail view.
Specified a bit better what we mean by showing frequency of an event.