code: function format(string, values) {
  		return string.replace(/\{(\d+)\}/g, function(match, number) {
  			return values[number];
  		});
  	}
docs: Simplified from http://stackoverflow.com/questions/610406/javascript-equivalent-to-printf-string-format.
  Format given string with the list of values. Works like printf
  where each replacing value should be an integer.
  @param  {String} string
  @param  {Array} values
  @return {String}