is now ignored if it is the same as the real suffix.

	back-ldbm was using a cache specific lock to protect non-reentrant
	database routines from being reenterred.  This is inadequate.
	Also, reentrant database systems calls were serialized unnecessarily.

	Non-reentrant database calls must have a big_mutex.  Implemented
	this within -lldbm itself.  library requires ldbm_initialize()
	be called before any other ldbm call to initialize the big_mutex
	and to do any other db specific initialization (ie: such as
	required for DB2).

The dbc_mutex, dbc_cv, & dbc_readers fileds of dbcache are history.
The "reentrant_database" (REENTRANT_DATABASE) define is also axed.

behind REENTRANT_DATABASE.  rename reentrant_database -> REENTRANT_DATABASE.
When REENTRANT_DATABASE is defined, the simple lock is replaced
with a simple reader/writer lock.  This functionality should be removed
from back-ldbm to libldbm.

is released.  Some other thread may have cache locked but blocking
on parent.  Must give up parent lock before acquiring cache lock.

Have forkandexec() return pid_t instead of int.

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

Rewrite all child waits to use wait4 (for consistency only).

SLAPD_NEXTID_CHUNK.  Code protects NEXTID file to ensure
its equal to or greater than nextid.  Updated on close
to actual nextid.  next_id_save() could be called periodically
if desired.  Default chunk size is 32.  Define to 1 to disable
chunking.

This removes a race condition upon the entry.

(don't make it conditional on p == NULL)

introduction of pid/agrs parameters to the test-suite slapd.conf files;
creation of sub-directory test/var for storage of pid/args files during test;
update of the slapd and slapd.conf man pages.
(The change reduces dependency on ldapconfig.h, since SLAPD_PIDEXT
 and SLAPD_ARGSEXT are deleted from the code.)

Is initialized to 0 (unknown) and then set to 2 or 3 on bind.  Should
also be 0->3 if a special (or any) operation occurs before the bind.

and uppercase.  (aliased_dn are stored in normalized uppercase format).

is at a DNSEPARATOR.  Moved DNSEPARATOR macro from dn.c to slap.h

(suffixAliasing only maps input dn's, not output dn).

provided dn (which is normalized and uppercased).   This preserved
the trailing portion of the dn.

Update slap_op to maintain dn and ndn (derived from conn->c_dn).
Update ldbm_back_bind to return actual bound dn (including rootdn)
	for use in slapd_conn.  Other backends use client dn.
Modify other codes to use ndn (normalized uppercase dn) most everywhere.
Aliasing, Suffixing and modrdn could use more work.
Applied suffixing to compare and modrdn.

Note: we probably can replace the dn2entry_r with dn2id as only the id
is needed unless we're holding the lock for filtercandidates or something