Copyright (C) 2008 Sam Roberts This library is free software; you can redistribute it and/or modify it under the same terms as the ruby language itself, see the file COPYING for details.
Notes on a CAL-ADDRESS
When used with ATTENDEE, the parameters are:
CN CUTYPE DELEGATED-FROM DELEGATED-TO DIR LANGUAGE MEMBER PARTSTAT ROLE RSVP SENT-BY
When used with ORGANIZER, the parameters are:
CN DIR LANGUAGE SENT-BY
What I've seen in Notes invitations, and iCal responses:
ROLE PARTSTAT RSVP CN
Support these last 4, for now.