default sysconfdir subdirectory is openldap instead of ldap.
    This removes conflicts with other ldap subsystems.  Should
    be configure option.
  *.conf files are now preserved.  A *.conf.default are always
    created with the latest conf.
  *.help and ldapfriendly are now placed in $(datadir)/$(ldap_subdir)
  updated man pages to reflect changes.

	mail500 to use filters
	Kerberos autoconf support
	ISODE autoconf support
	contrib autoconf support

Added new developer todo list.

Modified clients to reduce use of ldapconfig.h.edit.
ldap_{get,set}_option support is relatively complete.  Needs
to be extended to support other "features" of OpenLDAP.

Change backend struct option to li_dbcachewsync.

Added ACKNOWLEDGEMENT of U. Michigan contribution.

and setting of variables from Make-platform with defaults in Make-common.