/**
  * Returns a given CamelCasedString as an lowercase string with underscores.
  * Example: Converts BlogExample to blog_example, and minimalValue to minimal_value
  * Taken from t3lib_div for backward compatibility
  *
  * @param string $string: String to be converted to lowercase underscore
  * @return string lowercase_and_underscored_string
  */
 public static function camelCaseToLowerCaseUnderscored($string)
 {
     return Tx_Rnbase_Utility_Strings::camelCaseToLowerCaseUnderscored($string);
 }