If you want your application to appear in the App Store as Norwegian, you can try adding a folder named no.lproj (with some data inside), and then send / update the application.
I found this answer to another thread. He was accepted as the right guy to ask the question, so I just assume it worked. Please let me know if this worked or not, as I have to try this later when I have time.
I hope this helps, good luck.
EDIT: You can also edit the info.plist file. See this thread.
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