Norwegian bokmål translation for Roundcube Webmail:
http://orsta.org/i18n/roundcube-translation-nb_NO.tar.gz
Please note there are two official languages in Norway; Norwegian bokmål (nb / nb_NO) and Norwegian nynorsk (nn / nn_NO). In Roundcube, the generic "no" is used, which usually means nb_NO (no_NO might be allowed, but less common).
It would be nice if you could update ./program/localization/index.inc to include the following:
'nb' => 'Norsk (bokmål)', 'nn' => 'Norsk (nynorsk)',
and remove
'no' => 'Norsk (bokmål)',
Also, if I could make a suggestion, why not use the full locale (en_US, nb_NO, es_ES and so on) for translations? Gettext support could be nice too, but few strings so not that important yet :)
Thanks for a nice webmail project! I will be submitting the Norwegian nynorsk nn/nn_NO translation soon.