Missing colspan

Check /administrator/index.php?option=com_languages&view=languages. There is missing a colspan in the table footer.

This PR changes colspan="10" to colspan="11"

![colspan](https://cloud.githubusercontent.com/assets/1738811/3708871/c30a7f82-144a-11e4-8ed8-3f63d27718e2.png)

Tracker: http://joomlacode.org/gf/project/joomla/tracker/?action=TrackerItemEdit&tracker_item_id=33991