code: function splitLine(line) {
  	var idx = String(line).indexOf(':');
  
  	if (!line || idx < 0) {
  		return null;
  	}
  
  	return [line.slice(0, idx), line.slice(idx + 1)];
  }
docs: Splits a line at the first occurrence of :
  
  @param  {string} line
  @return {Array.<string>}
  @private