事件日志记录器

此版本中的新功能：Version 1.6: cleanup event overview, added icon Version 1.5: Events can have an extra note and changing the date/time of an event is possible now. 1.4: I don't know how I got away with it: Annet's Event Logger had no color! So unlike Annet. Now every button/event can have its own color. 1.3: bug fix 1.2: On users (2) request: deleting an event is now possible. Perform a 'long click' on an event and a context menu appears with delete options.