authenticate users by checking credentials via the Cyrus SASL library.
This may be interesting for setups where other daemons (e.g. for SMTP, IMAP or
LDAP) already running at a machine use SASL to authenticate users.
WWW: http://mod-authn-sasl.sourceforge.net/
PR: ports/131750
Submitted by: Joerg Pulz <Joerg.Pulz at frm2.tum.de>
