from Paul Turgyan of University of Michigan.

Add additional notices.  Likely need to add a quiet mode.

Replace 'negotiated' with 'interactive' bind
Add hooks for SASL/EXTERNAL
Disable SASL security layers
Rework SASL command line and config file parameters

Use -DSLAPD_SCHEMA_COMPAT to use 1.x compatible schema (deprecated).

Modified by me to dn_*() and attr_*() functions and to use
uidObject and to handle search scopes better.  Could use some
more work.  A fun project for anyone wanting to learn how
backends work.
Modified dn_parent and dn_rdn to accept be=NULL (to bypass
be_issuffix check).  These functions should be generalized
and moved to -lldap.  A project for another day.

Remove disable write sync (dbcachenowsync) in master (for concurrency test).

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.)