All the fixes have been provided by Petter Reinholdtsen. Thanks much to Petter:
Fix SF bug #118: fix 'nb' and 'nn' locales.
Fix SF bug #119: use locale quotes in glossary.
Fix SF bug #120: use locale quotes in bibliography.
Fix SF bug #123: add 'se' locale.
Fix SF bug #124: set default qandaset title markup in english.