[Dovecot] v2.0.4 released

http://dovecot.org/releases/2.0/dovecot-2.0.4.tar.gz http://dovecot.org/releases/2.0/dovecot-2.0.4.tar.gz.sig

multi-dbox users: Be careful about the INDEX change.

Maildir users: I hope v2.0 is now finally stable.

* multi-dbox: If :INDEX=path is specified, keep
  storage/dovecot.map.index* files also in the index path rather than
  in the main storage directory.

  WARNING: if you specified :INDEX= with earlier mdbox installation,
  you must now manually move the storage indexes to the expected
  directory! Otherwise Dovecot won't see them and will rebuild the
  indexes, possibly unexpunging some mails.

- Maildir: Copying messages with hard links sometimes caused the
  source maildir's entire tmp/ directory to be renamed to destination
  maildir as if it were a message.
- Maildir: v2.0.3 broke expunging copied messages sometimes
- Maildir: INBOX whose tmp/ directory was lost couldn't be opened
- single-dbox: Messages weren't copied with hard links
- vpopmail support is hopefully working again.
- dsync: POP3 UIDLs weren't copied with Maildir
- dict file: Fixed fd leak (showed up easily with LMTP + quota)