code: function rateMetaDescLength( metaDescLength ) {
  	var rating;
  
  	switch ( true ) {
  		case metaDescLength > 0 && metaDescLength < 120:
  		case metaDescLength > maximumMetaDescriptionLength:
  			rating = "ok";
  			break;
  
  		case metaDescLength >= 120 && metaDescLength <= maximumMetaDescriptionLength:
  			rating = "good";
  			break;
  
  		default:
  			rating = "bad";
  			break;
  	}
  
  	return rating;
  }
docs: Returns a rating based on the length of the meta description
  
  @param {number} metaDescLength the length of the meta description.
  
  @returns {string} The rating given based on the description length.