CraftFire/Bifrost — pull request #2 by Wolf480pl (2012-08-29 12:39:54+00:00)
Title: Added Message class and made PrivateMessage, ForumThread and ForumPost extend it.

Message class is a base class for all messages like Article, Post, Thread, Comment, PrivateMessage, etc.
It has script, ID, date, author, and body. It doesn't have subject as not all messages have it.