tools directory is now obsolete.

Updated NT Project files (with Cyrus SASL library depend)

SASL mech removed from backend bind callback (as SASL is managed by frontend)
Changes to some backends are untested (as I don't have all dependent
  software install)

limited subtype support, modlist handling, filter updates,
lastmod attribute handling.

Changes outside of #ifdef include three value filter processing.

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

should have been.

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)