Clean up headers.

Compile with -DLDAP_CONNECTIONLESS to use this code.
For slapd, use "-h cldap://" to listen on UDP.
For ldapsearch, use "-H cldap://" to query on UDP.
Client-side support is very minimal:
  no automatic timeout/retries
  no basedn wildcard expansion on results
  no support for specifying multiple servers at once.

macros into our namespace and limit use to headers.  A subsequent
round will add macros to separately handle forward declarations
of variables from declaration of function prototypes.  The last
round will add additional macros for declaring actual variables and
functions.

other minor changes.

was only of limited use with LDAPv2 (worked okay if no non-T.61
values existed) but downright dangerous in the face of LDAPv3.
Any translation must be schema aware and the BER isn't.

Copyright 2000 Gábor Gombás. All rights reserved.
This is free software. You may redistribute and use it under the same
terms as OpenLDAP itself.

Add ber_get_enum() for symmetry

Used mainly on NT since stderr doesn't exist when slapd runs as a service.

plus these changes unhidden changes:
	remove now meaning --enable-discreteaci configure option
	fix ITS#451, slapd filters
	Add ber_bvecadd() to support above
	constify ldap_pvt_find_wildcard() and misc slapd routines
	renamed some slap.h macros
	likely broken something

Add copyrights

an integer type of exactly 32 bits.

See README 1.27 log

added lber_types.h.nt, lber_types.h.in
removal of NULLxxx internal macros (in favor of NULL).
ch_free added to slapd,slurpd/ch_malloc.c
#define free ch_free (should be removed after s/free/ch_free/g) in proto-slap.h
ch_malloc and friends use ber_memalloc and friends

ldap.h: added #include <lber.h>
ldap.h: added tags for extended operations