Blindly added Autoconf support to ldapd.

configure

configure.in

include/ac/syslog.h

include/portable.h.in

include/portable.h.nt

servers/ldapd/abandon.c

servers/ldapd/add.c

servers/ldapd/association.c

servers/ldapd/bind.c

servers/ldapd/certificate.c

servers/ldapd/common.h

servers/ldapd/compare.c

servers/ldapd/delete.c

servers/ldapd/detach.c

servers/ldapd/error.c

servers/ldapd/kerberos.c

servers/ldapd/main.c

servers/ldapd/message.c

servers/ldapd/modify.c

servers/ldapd/modrdn.c