def shutdown!
      HotTub.logger.info "[HotTub] Shutting down pool #{@name}!" if HotTub.logger
      @shutdown = true
      kill_reaper if @reaper
      drain!
      @shutdown = false
      nil
    end
def shutdown!
      HotTub.logger.info "[HotTub] Shutting down pool #{@name}!" if HotTub.logger
      @shutdown = true
      kill_reaper if @reaper
      drain!
      @shutdown = false
      nil
    end
Kills the reaper and drains the pool.