Fixed problem with event gauges beeing displayed always one event behind.

  end

  def tick

    @redis.blpop(queue_key, 0).callback do |list, event_id|           

    @redis.blpop(queue_key, 1).callback do |list, event_id|           

      EM.next_tick(&method(:tick))

      if event_id

        @redis.get(event_key(event_id)).callback do |event_data|                     

          process_event(event_id, event_data) if event_data        

          FnordMetric.log("event_lost: event_data not found for event-id '#{event_id}'") unless event_data

        EM.next_tick(&method(:tick))      

          @redis.hincrby(stats_key, :events_processed, 1)

        end

      end

    end

  end

  def process_event(event_id, event_data)

    EM.defer do