code: function displayableTimeElapsed(timeStamp) {
  		var duration = timeElapsed(timeStamp);
  		if(duration) {
  			return i18nUtil.formatMessage(messages["timeAgo"], duration);
  		}
  		return messages["justNow"];
  	}
docs: Returns the displayable time duration passed by now. E.g. "just now", "2 minutes ago", "an hour ago", "a day ago", "3 months ago", "2 years ago"
  @param {String} timeStamp
  @returns {String} If the duration is less than 1 minute, it returns empty string "just now". Otherwise it returns a duration value.