public function tarefasarquivadasAction()
 {
     $cliente = new SoapClient($this->_WSDL_URI . '/wsdl');
     //return new ViewModel(array("dados"=>$cliente->tarefas(1)));
     $response = $this->getResponse();
     $response->getHeaders()->addHeaders(array('Content-type' => 'text/xml'));
     $xml = $response->setContent($cliente->tarefasArquivadas(1, true));
     return $xml;
 }