[Dovecot] v2.1.6 released

http://dovecot.org/releases/2.1/dovecot-2.1.6.tar.gz http://dovecot.org/releases/2.1/dovecot-2.1.6.tar.gz.sig

    * Session ID is now included by default in auth and login process
      log lines. It can be added to mail processes also by adding
      %{session} to mail_log_prefix.

    + Added ssl_require_crl setting, which specifies if CRL check must
      be successful when verifying client certificates.
    + Added mail_shared_explicit_inbox setting to specify if a shared INBOX
      should be accessible as "shared/$user" or "shared/$user/INBOX".
    - v2.1.5: Using "~/" as mail_location or elsewhere failed to actually
      expand it to home directory.
    - dbox: Fixed potential assert-crash when reading dbox files.
    - trash plugin: Fixed behavior when quota is already over limit.
    - mail_log plugin: Logging "copy" event didn't work.
    - Proxying to backend server with SSL: Verifying server certificate
      name always failed, because it was compared to an IP address.