VMM: moved functions ace2idna(), check_domainname(), idn2ascii()
and relevant parts to the Domain module.
Adjusted imports in modules AliasDomain, EmailAddress and Handler.
-- ----- with Dovecot v1.2.x the service managesieve was renamed to sieve-- ---ALTER TABLE users RENAME managesieve TO sieve;DROP VIEW dovecot_password;CREATE OR REPLACE VIEW dovecot_password AS SELECT local_part || '@' || domain_name.domainname AS "user", passwd AS "password", smtp, pop3, imap, sieve FROM users LEFT JOIN domain_name USING (gid);