[Dovecot] dovecot.org moved

[Timo Sirainen]

Looks like the old server doesn't stay up much at all anymore. And since it's 
kind of difficult currently to get access to the server I just restored 
everything from the previous night's backups. Latest mailing list 
subscribes/unsubscribes may need to be done again. Also I think there are some 
old configurations (and other things) still somewhere.. I'll change these as 
found and maybe I'll get access to the old server some day soon and can check 
again what differences there are.