New alias.c provided by Stuart Lynne.

Not quite sure if the entry lock handling is correct yet.

Will consider moving to groupOfUniqueNames as part of OpenLDAP 2.0.

referral has been configured in the server.  Fix provided by Hallvard.

This could have caused a crash.

Patch submitted by Chris Smith <csmith@platform.com>

Patch provided by Hallvard B Furuseth <h.b.furuseth@usit.uio.no>.

Must enable -DLDAP_ALLOW_NULL_SEARCH_BASE to use.

Modified for OpenLDAP use by Daniel J. Gregor <djg@gregor.com>.

	Derived from public posting to ldap@umich.edu
	by Kurt Spanier <kurt.spanier@zdv.uni-tuebingen.de>
	See Make-common.dist for DB2 options

	SHA1 support is contributed by Daniel J. Gregor <dj@gregor.com>
	MD5 support is contributed by me <kurt@OpenLDAP.org>
	Uses public domain MD5 routines
	Uses ISC/IBM freely redistributable Base64 routines
	SHA1 support requires external SHA1 routines

	adds POSIX RegEx (and removes BSD re_comp/re_exec) support.
* POSIX RegEx is not currently included in the distribution, however
	we will probably add Henry Spencer's REGEX library soon.
* ACL Group functionality is also included in this merge!

Fixed Dependency Generation not to mess with Make-templates.
	side effect: depends are not carried forward after "make makefiles"

ldif2ldbm.c defaults moved to ldapconfig.h, sed no longer needed.
Changed type of lconn_lastused to time_t.
Added include <time.h> were needed.