BEGIN:VCALENDAR
BEGIN:VEVENT
DTSTART:20140803T190000Z
DTEND:20140803T210000Z
RDATE;VALUE=DATE-TIME:20150705T190000Z
EXDATE;VALUE=DATE-TIME:20150705T190000Z
RRULE:FREQ=DAILY;UNTIL=20160320T030000Z
SUMMARY:rdate and rrule overlap but exdate removes the date again
END:VEVENT
END:VCALENDAR