Maildir server on OsX

hi, I created a package for courier-imap , would u like to merge it back?

I also created one for its dependency courier-authlib

it compiles like a charme on OsX 10.6.8 and the latest 10.8
it also runs on the first one, on the second instead I have to figure out how to push a proper authdaemond configuration

p.s. I'd also like to override the config, to provide by default a bind of the interface on the loopback and not on all, since it is supposed to be a local service... not internet wide... any idea? I've not found documentation and/or sample on how to do config changes from the homebrew site