Refactoring IMAPServer

Ideally, we have

• 1 MessagePart^? class and
• 1 Message class which extends MessagePart^?

This requires us to be able to annotate all MIME-like objects in Chandler with the MessagePart^? class.

Unfortunately, we also need to be able to retrieve headers, etc from any MessagePart^?.

We can do this by just calling messageObjectToKind(kindToMessageObject({chandler_message_item}).{some_operation})

This, however, results in seperate MailStamp^? items for all subparts of a Chandler message item, which is not ok.

-- TravisVachon - 06 Sep 2006