def handle_unset(m, params)
key = params[:key].to_s.intern
unless @bot.config.items.has_key?(key)
m.reply _("no such config key %{key}") % {:key => key}
end
return if !@bot.auth.allow?(@bot.config.items[key].auth_path, m.source, m.replyto)
@bot.config.items[key].unset
handle_get(m, params)
m.reply _("this config change will take effect on the next restart") if @bot.config.items[key].requires_restart
m.reply _("this config change will take effect on the next rescan") if @bot.config.items[key].requires_rescan
end