[Dovecot] authentication documentation

[Johannes Berg]

Curtis Maloney said:

> Absolutely, a snapshot would be excellent... however, again (without
> wanting to sound too old fashioned :) so long as there's a plain text
> version.  I can read HTML fine, but it can really slow things down,
> you know? :)

I think you could simply include the raw wiki pages -- imho the markup
moinmoin uses is very readable.

johannes