add ability to set title from url

vnc_auto.html

@@ -88,6 +88,7 @@
 
             $D('sendCtrlAltDelButton').onclick = sendCtrlAltDel;
 
+            document.title = unescape(WebUtil.getQueryVar('title', 'noVNC'));
             host = WebUtil.getQueryVar('host', null);
             port = WebUtil.getQueryVar('port', null);
             password = WebUtil.getQueryVar('password', '');