meetingid|||id|||password|||reponse|||note

meetingid: The meetingid that this line pertains to for the given calendar.
This will match with the meetingid column in the items file.

id:  A identifier consisting of an emailaddress, optionally followed by a
';' and a calendar that the email address corresponds to.

password: A plaintext password used to identify an attendee who was invited
by emailaddress only.  Attendees invited by emailaddress must provide the
password when responding.  Attendees who have a calendar in webcalng will
provide the username and pasword for the calendar they were invited under
in order to authenticate.  This password is just 4 random numbers and letters,
different each time someone is invited.

response:
  The response values have the following meanings:
  0 = no reponse yet
  1 = not able to attend
  2 = maybe able to attend
  3 = able to attend

note: If the person has included a note, it goes here.
