Make MemoryCalendar::rawEvents(QDate, QDate) works for open bounds
MemoryCalendar::rawTodos() can already use open bounds, but rawEvents() cannot. This patch is fixing this and is adding a non-regression test for events.
MemoryCalendar::rawTodos() can already use open bounds, but rawEvents() cannot. This patch is fixing this and is adding a non-regression test for events.