Works on BSD as well (equiv. to -DFD_SETSIZE=N).

update misc notices

using LDAP_DEVEL (to indicate experimental) to enable experimental features
(true for HEAD unless LDAP_REL_ENG is defined)

simple bind via:
	{KERBEROS}principal
Code is disabled by default (for security reasons).  Use
--enable-kpasswd to enable.  Behind SLAPD_KPASSWD.
Reworked Kerberos detection and split out KBIND as independent
feature (--disable-kbind) (LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND).
KBIND depends upon detection of KRB4 (or KRB425) support.  Detection,
building with eBones (as distributed with FreeBSD 3.4) okay, but
wasn't able to test as I don't have a K4 KDC handy.
--with-kerberos has a number of detection options... most likely
don't work properly.

(excepting WIN32_LEAN_AND_MEAN).  Rework openlog/closelog use to
eliminate need for defines.

ifdefs to depend on _WINNT, which is bogus. Added _WIN32 back on these ifs,
and fixed some other include problems.

socketpair.  Use dependent on useful detection is.

to build OpenLDAP.

of explicit acconfig.h entries.

ith --enable-modules. GLib v1.2 or higher is required.