Fixed news list hider function.

In the previous version the whole #hirek DIV was cleared, which rendered
the redisplay function faulty.

Signed-off-by: Gergely POLONKAI <polesz@w00d5t0ck.info>

src/KekRozsak/FrontBundle/Resources/views/Default/main_template.html.twig

@@ -211,7 +211,7 @@
                 });
 
                 $('#news-close-button').click(function() {
-                    $('#hirek').html('');
+                    $('#news-content').html('');
                     $('#hirek').hide();
                     $('#content-outline').css('width', '960px');
                     $('#news-button').show();