Address "bouyancy" typo (should be "buoyancy")

Address "bouyancy" typo (should be "buoyancy")

Let us avoid a typo making it into a major release and condemning us to
the hell of having to remember to misspell this thing until we can break
backwards compatibility...

Drop metabib.suggest_browse_entries() in the upgrade script, as the OUT
parameters have changed and a mere "CREATE OR REPLACE" will not suffice.

Signed-off-by: Dan Scott <dscott@laurentian.ca>