[Dovecot] Source patches from Apple

Hello Dovecot developers,

Apple has made and tested significant changes to Dovecot v1.1 and now
is ready to contribute them back to your open source project. The
changes include:

Scalability and performance: allow pop/imap mail processes to handle multiple clients larger listen queues

Stability and maintenance: fix to allow cross-compilation workarounds for Mac OS X bugs a couple general bug fixes symbol conflict resolution

Features: Open Directory integration back off after failed auth attempts Mac OS X-specific handle dynamic host name changes

I could contribute these as one giant patch or as a sequence of
discrete patches. How would you prefer to receive them?