Comment 4 for bug 79785

I looked more into KOrganizer and found several problems apart the ones
mentioned.

The complete list of problems:
1) Content-type header not set (http://bugs.kde.org/show_bug.cgi?id=92257)
   (maybe not a bug)
2) Empty lines in calendar file (maybe not a bug)
3) KOrganizer does not deal with DURATION well, it seems to parse it but
   not save it back (http://bugs.kde.org/show_bug.cgi?id=92255)
4) KOrganizer exports all times in UTC, which we treat as local time, and
   in effect, (in Lithuania) event time moves 3 hours back on every
   load/export cycle.
5) Problems with parsing recurrent events:
  a) when weekly recurrence is specified through the Web interface, KOrganizer
     does not show the event at all.
  b) yearly recurrence is not recognized by KOrganizer (it probably expects
     BYMONTH and BYMONTHDAY to be explicitly specified)
  c) exceptions provided by SchoolTool are ignored by KOrganizer;
     SchoolTool barfs (traceback will be attached) when KOrganizer tries to
     submit an event with exceptions.
  d) a similar traceback as in (c) is thrown when trying to submit a
     recurrent event end-date.

There are probably more problems that I didn't come across...

A small patch that at least allows to do testing with KOrganizer is attached.