o Update to 2.4.18.
o Add support to slapd_krb5_ktname, which exports an environment variable
KRB5_KTNAME so that user can specify alternative Kerberos key table. 
o Add support to run slapd with cn=config style configuration. 
Reported by: Matthew Hambley <matthew at aether demon co uk> 
Ulrich Spoerlein <uspoerlein at gmail com> 
Submitted by: Nikolai Nespor <nikolai nespor at basis-wein at>