Repair rebuilddb lossage, removing debug messages and final copy on user msgs.

Repair rebuilddb lossage, removing debug messages and final copy on user msgs.
Initialize dbN vector from dbNopen.
Use db3 return convention for dbNopen.
Always save tag index in join key.
Rename rpmdbAppendIteratorMatches -> rpmdbAppendIterator.
Remove tolerant from rpmdbRemove API.
Use hdrNum rather than offset, tagNum rather than fileNumber most everywhere.
rpmdb.c: Create rpmdbPruneIterator to exclude items from set.
rpmdb.c: Remove legacy code from rpmdbAdd/rpmdbRemove.
rpmdb.c: Rename (shorten) many routines.
tagName.c: prepare for ADDED/REMOVED/AVAILABLE temorary databases.
depends.c: use rpmdbPruneIterator.
depends.c: don't check ranges unless provides names match.
depends.c: Depends now works (watch out for data values of 0).
rpmpopt.in: Add --dbapi and --rebuilddbapi options.

CVS patchset: 3720
CVS date: 2000/05/07 00:53:11