Unless I am mistaken, there is still three hardcoded strings in outputclass.inc.php line 141 :
$menus = array('content'=>array(), 'settings'=>array(), 'go'=>array());
and once you’ve replace array, settings, go , you have to replace all instances in line 143, 148, 154, 159, 178, 180. I have tried with french strings and it works.
If I am correct, we had to add those to the language strings and modify this line accordingly...
Should I file this in FlySpray ?