code: public IntervalHistogram snapshot(boolean reset) {
  		if (reset) {
  			return new IntervalHistogram(bins, getAndResetHits());
  		}
  		return new IntervalHistogram(bins, getHits());
  	}
docs: Clones this histogram and zeroizes out hits afterwards if the 'reset' is
  true.
  
  @param reset
  zero out hits
  @return clone of this histogram's state