code: public <T> T cleanupValue(T rawValue) {
          T cleanValue;
          if (rawValue instanceof String) {
              cleanValue = (T) cleanupValue((String) rawValue);
          } else {
              cleanValue = rawValue;
          }
          return cleanValue;
      }
docs: Removes result of wiki formatting (for e.g. email addresses) if needed.
  @param rawValue value as received from FitNesse.
  @return rawValue if it was just text or any object, cleaned version if it was not.