def incr(key, count=1)
      # dalli incr is broken just like in memcache-client gem
      with_failure_grace(count) {
        set(key, get(key, 0) + count)
      }
    end
def incr(key, count=1)
      # dalli incr is broken just like in memcache-client gem
      with_failure_grace(count) {
        set(key, get(key, 0) + count)
      }
    end
increment key by count