def save_config
      config = $bot[:config].clone
      config.delete :client
      File.open "./#{Twittbot::CONFIG_FILE_NAME}", 'w' do |f|
        f.write config.to_yaml
      end
    end
def save_config
      config = $bot[:config].clone
      config.delete :client
      File.open "./#{Twittbot::CONFIG_FILE_NAME}", 'w' do |f|
        f.write config.to_yaml
      end
    end
Saves the bot's config (i.e. not the botpart ones).