HEADS UP: Berkeley DB support

["Kurt D. Zeilenga" <Kurt@OpenLDAP.org>]

Support for BerkeleyDB 3 has been committed (thank Gary)
with new LDBM API detection macros (thank me).  The
options --with-ldbm-api=db2 and --with-ldbm-api=db have
been replaced.
	--with-ldbm-api=berkeley
	--with-ldbm-api=bcompat

The first choice will attempt to use Berkeley DB as found
in <db.h>.  The second choice will use Berkeley DB 1 as
found in <db_185.h> or <db.h>.

The software now relies on DB_VERSION_MAJOR to conditionally
include appropriate code.  This makes life better.

Enjoy!

	Kurt