Clarified the meaning of PURPLE_REASON_NETWORK_ERROR and
PURPLE_REASON_AUTHENTICATION_FAILED, and added
PURPLE_REASON_AUTHENTICATION_IMPOSSIBLE. It's not fatal basically because none
of the places in prpl-jabber that need it set wants_to_die --- should it be?
# translation of nb.po to Norsk bokm�l
# Gaim Norwegian translation
# Copyright (C) 2003, Petter Johan Olsen <petter.olsen@cc.uit.no>