Not hidden "NULLDN" to "<anonymous>" in modify stats

Not hidden: "<anonymous>" modifiersname

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

Changes outside of #ifdef include three value filter processing.

basic structures for handing language tags and binary option
(but less actual code to actually support them).  Provided
for reference only.  Will not even compile.

additional schema items.

OID for experimental syntax.

Attribute subtyping, especially that using attribute description
options, will have to reengineered.

attributes of the syntax.  Such attribute values be transferred
using binary syntax unless ber2str/str2ber routines are provided.
Used in conjunction with ";binary" attribute description option
and/or the Binary syntax.

filters.

Move AttrInfo from back-ldbm.h to attr.c

Still not usable.

MUST be defined).

Revert normalization to matching rule per discussions with Julio.
May need separate normalization routines for stored value and asserted
value. Currently rely on passed in syntax/mr to allow "special" behavior.
Reworked filters to pass struct berval * instead of char *. (needs work)
Validation, normalization and matching needed.

routine.  Could be combined into one routine.
Modify slapd matching rule struct to only have match function.
Modify old attribute such that 'bin' implies octetString, not 'binary'.
Add compatibility for IA5 strings.  Only directoryStrings were handled
before.
Treat attribute types without syntax as incomplete, not default.
Add OctetStringValidate (always returns okay).
Add {UTF8,IA5}StringValidate/Normalize  (IA5 based loosely on
case_exact_normalize).  Need case{Exact,Ignore}UTFMatch, using IA5 versions
for now.
Removed default of syntax/mr handlders, should just skip
registration of syntax/mr's without handlers.
Added comments to slap.h about types versus descriptions.

support for DCE slash-delimited, left-to-right DNs;
support for a domain socket transport (enable with
--enable-ldapi); and extensions to URL parsing to
support the latter transport.

Updates to extended operation framework to support arbitrary
referrals and extended results without OIDs.
Updated passwd extended operation to support returning update_refs
as needed.  Needs replog support.

Modify tests to use -h "ldap://localhost:port/" instead of -p port.

Add controls to extended ops API signatures, need impl.
Update password to support optional server side generation of
new password, verification of old password, and changing of
non-bound user's passwords.

Rework lutil_passwd routines to use struct berval instead of strings.

user password.  Likely to be modified to use bind control
instead.  Use of modify deprecated in favor mechanisms that
support passwords stored externally to the directory (such
as in a SASL service).
Modified slapd extended operation infrastructure to support
backend provided extended operations.

after <stdlib.h>, but <stdlib.h> is included in slap.h. Moved <ac/param.h>
include into slap.h.

privs, additive/substractive rules, and rule continuation.  Existing
rules that use 'defaultaccess none' should be 100% compatible.  Rules
that rely other defaultaccess settings will require addition of
explicit clauses granting the access.
Needs additional testing and tuning of logs

and back-ldbm are preserved, they only use the up-cased DNs. back-passwd
uses the mixed-case DN. All others are using mixed-case DN, may need more
fixing.

Replace old Id as needed (back-tcl).
Leave updating of contribWare to contributors (for now).

attribute syntaxes using syntax description in addition to syntax OID.
Removed all whitespace from syntax descriptions.

New id2entry (id-less) format (ldbm/bdb2)
Removed id2children (ldbm/bdb2)
Added nextid database (ldbm)
Broke ldbmtest
Removed ldif2* tools (ldbm/bdb2)
Added slap tools (slapadd, slapcat, slapindex)

behind -UDN_INDICES.