[Dovecot] v1.0.5 released

http://dovecot.org/releases/1.0/dovecot-1.0.5.tar.gz http://dovecot.org/releases/1.0/dovecot-1.0.5.tar.gz.sig

v1.0.4 was a bit bad release.

- deliver: v1.0.4 broke home directory handling
- maildir: Creating mailboxes didn't use dovecot-shared's group for
  cur/new/tmp directories.