(Just slapcat for now, other tools don't seem to be critical.)

be preparing to use timestamps with sub-second resolution, really.)

use "pgsql" instead of "postgres" for consistency with the directory names in servers/slapd/back-sql/rdbms_depend

ACL checks when modifying user-modifiable attributes as non-root user.

fix improper use of "fail_if_no_mapping" flag: fail in case of error, don't fail only if mapping is not present