Make sax parser offline

MyXMLParser.scala

object MyXMLParser extends XMLLoader[Elem] {
    override def parser: SAXParser = {
      val f = javax.xml.parsers.SAXParserFactory.newInstance()
      f.setNamespaceAware(false)
      f.setValidating(false)
      f.setFeature("http://apache.org/xml/features/disallow-doctype-decl", false);
      f.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);
      f.newSAXParser()
    }