[Dovecot] dovecot developer documentation

[Piotr Wadas]

Hello,
I want to create some specific plugin for dovecot v1.1 (rc5).
Where can I find some developer documentation ? 
Can I build my plugin separately, or do I need to rebuild
dovecot again ? 
I'm looking into code, and analyzing some simple plugins,
but hooks documentation or any hints you could give would be very 
helpful.. AFAIK there's no search for mailing list archives
available, to let me search for some older guidance in
this case :(

Regards,
Piotr