code: public Reader createScript(Charset charset, ResourceBundle bundle) {
  
  		Properties props = new Properties();
  		updateProperties(bundle, props, charset);
  		return doCreateScript(props);
  	}
docs: Loads the message resource bundles specified and uses a
  BundleStringJasonifier to generate the properties.
  
  @param charset
  the charset
  @param bundle
  the bundle
  @return the script