r/w locks and thread pools.  Hide internal structures (using
pthread'ish technics).  Place common code in threads.c.  Move
no-thread code to thr_stub.c.  Move thread pool code to tpool.c.
Removed setconcurrency call from initializer, added 'concurrency'
directive to slapd.  Tested code under pthreads, pth, and no-threads.

Add ber_get_enum() for symmetry

Need to add lber-types(3) to document BER types, allocation, and deallocation.
May need to add additional pages to document other new features.

Submitted by Gabor Gombas <gombasg@inf.elte.hu>

must be specified for each database.

Used only for simple bind when dn == NULL and password != NULL.

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

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.

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 allowing 'attribute' for backwards compatibility).
manuals and *.schema to be updated as time permits.

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).

Insert reference to ITS webpage

ldif updates (add URL description).

Remove man pages for old ldbm tools.