Method timing

examples/StatsdClient.java:117–119

(String key, int value)

	public boolean timing(String key, int value) {
		return timing(key, value, 1.0);
	}

	public boolean timing(String key, int value, double sampleRate) {
		return send(sampleRate, String.format(Locale.ENGLISH, "%s:%d|ms", key, value));