Add information about moderator action

I see when a moderator change something in a thread there isn't a message about what moderator have done (some user add manually at the end of the post some info).
And i see if a moderator delete a post there isn't a email message to a user that inform his post is delete.

Maybe a line text about some info is useful and maybe this line can use for send email to user.

see http://developer.qt.nokia.com/forums/viewthread/4112/