same fixes, this time hopefully without merge conflict

files/delete.php

files/get_files.php

files/move.php

files/new.php

img/arrow_down.png

img/arrow_up.png

img/icons/loading.gif

inc/lib_base.php

inc/lib_config.php

inc/lib_files.php

inc/templates/configform.php

inc/templates/footer.php

inc/templates/header.php

index.php

js/filebrowser.js

js/lib_ajax.js

js/lib_drag.js

js/lib_event.js

js/lib_files.js

js/lib_xmlloader.js