NetteExtension.php: method setupApplication() at line # 208 is unnecessary semicolon

After generating the configuration at the end of the line unnecessarily 2x semicolon.

	/**
	 * @return Nette\Application\Application
	 */
	public function createServiceApplication()
	{
		...
		!headers_sent() && header('X-Powered-By: Nette Framework');;
		...

	}