/**
* Sends a download dialog to the browser.
*
* @param string $stream Can be a file-path or a string.
* @param string $name Name of the stream/file should be shown.
* @param boolean $exit Optional for testing
*/
public function sendStream($stream, $name, $exit = true)
{
Header::clear();
Header::sendDownloadDialog($stream, $name, $exit);
}