Add idl_insert

Use AC_FMEMCPY where appropriate (-llber)

Old code applied sync flags to store(), however supported DBMs
require such flags to be specified during open().  The new
code now applies flags in ldbm_cache_open (which calls ldbm_open).
ldbm_cache_close() now calls ldbm_sync().  This will force
a updating of on-disk contents after each LDAP operation.
The old code either failed to sync the on-disk contents until
close or synced on every store.   Per LDBM operation syncing
*should* be safe enough... real data safety requires transactions.
Removed nosync option from BDB2 as it is not compatible with
txn support.
Also added code to disable DBM level locking as slapd is only
process acessing the databases (dbnolocking).

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

by Hallvard's IDL changes!

Fix printf formats, remove unused variables, add missing prototypes in slapd,
add static/const, add some return types or change to void return type.

modrdn to run,  but masks the underlying subtree index bug (which
I haven't found yet).
Apply modrdn/dn2id changes to BDB2.

Add additional abandon point to modrdn.
test005-modrdn still shows error.  Likely in dn2id, index, or idl codes.

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.

Change prefixes to make eyeballing .dbb files easier

Added initial DN_INDICES code behind #ifdef DN_INDICES.
  Generates only equality index.  Will add parent and subtree indices next.

NULL does not meet basic syntax rules.

  added slap_ and ldbm_ to many structures
  added typedefs to many structures
  used typedefs
New main.c argument parsing with ldap url support (replacing -a address).
New sockaddr_in handling and support for multiple listeners.

Includes support for update referral for each replicated backend.
	Reworked replication test to use update referral.
Includes major rewrite of response encoding codes (result.c).
Includes reworked alias support and eliminates old suffix alias codes
(can be emulated using named alias).
Includes (untested) support for the Manage DSA IT control.
Works in LDAPv2 world.  Still testing in LDAPv3 world.
Added default referral (test009) test.

I rather have NOID printed as "-1".  It it could argued that ID
should be signed.

cache_set_state() and state args are no history.
Move cache_entry_cmp() and friends to slapd/entry.c to allow sharing
of functions between backends..  Renamed to entry_cmp().

The new e_private field can be used for any backend purpose.  In LDBM,
it's used to point th the private entry info struct.  The LDBM entry
info struct is only visible to the LDBM cache.
WARNING: This change has not be ported to other backends!  Breakage is likely.

Assume entry was deleted from underneath the dn2entry call,  hence
processing is same as if NOID had been returned.

Introduction of ldbm_datum_init().
Patch for non-NULL pointer test befor call to ldbm_datum_free().

if strdup fails.  This is better than not checking, but we should
add orderly shutdown.

Modified users of this code to free matched if set.