* 'create_tables.pgsql'
    - Replaced column 'disabled' with columns smpt, pop3, imap and managesieve
    - updated view, added service columns smpt, pop3, imap and  managesieve
* 'update_tables_0.3.x-0.4.py'
    - Updated to consider the points above mentioned
* 'vmm.cfg'
    - Added section »services« with options: smtp, pop3, imap and managesieve
* 'update_config_0.3.x-0.4.py'
* 'VirtualMailManager/Config.py'
    - Updated, to add new section »services«
* 'VirtualMailManager/Account.py'
* 'VirtualMailManager/VirtualMailManager.py'
* 'vmm'
    - Modified, to fit new database structure
* 'UPGRADE'
* 'INSTALL'
    - Updated information
* 'update_tables_0.4-dev_r24.py'
    - Added temporary to the repository
If you have installed vmm 0.3.x you have to proceed this steps:
    * stop Postfix and Dovecot
    * backup/dump your database.
    * backup/dump your database!
    * execute upgrade.sh
    * set permissions for replaced views:
        GRANT SELECT ON dovecot_user, dovecot_password TO your_dovecot_dbuser;
        GRANT SELECT ON postfix_transport TO your_postfix_dbuser;
    * update user_query in /etc/dovecot/dovecot-sql.conf:
        user_query = \
         SELECT home, uid, gid, mail FROM dovecot_user WHERE userid='%u'
    * update password_query in /etc/dovecot/dovecot-sql.conf:
        password_query = \
         SELECT "user", password FROM dovecot_password WHERE "user"='%u' AND %Ls
    * edit the pgsql parameters hosts, user, password and dbname in:
        $(postconf -h config_directory)/pgsql-smtpd_sender_login_maps.cf
        $(postconf -h config_directory)/pgsql-transport.cf
        $(postconf -h config_directory)/pgsql-virtual_mailbox_domains.cf
    * check the value of option transport in section misc in
      /usr/local/etc/vmm.cfg
    * start Dovecot and Postfix
else:
    * read INSTALL