[Dovecot] first crack at auto-trash plugin

I have written an alpha version of an auto trash plugin for dovecot. When compiled in any mail expunged from a non-Trash folder is moved to a folder named Trash. As of yet the folder is not created if it doesn't exist (the process fails before expunge). I would appreciate feedback of any sort. In addition, I am currently getting an error I haven't been able to puzzle out in the logs when it runs:

Mar 21 15:22:01 david dovecot: imap(david@grayskies.net): Timeout leak: 0x807fad0

I see that it seems to relate to transactions somehow, but my few hours of playing with dovecot haven't given me the answer - so ideas/patches to the code would also be nice.

You can grab it here: http://wrath.grayskies.net/tarballs/auto-trash.tar.gz

-David