Bug 1041565 - Setting for toggling pseudolocales

https://bugzilla.mozilla.org/show_bug.cgi?id=1041565
I don't think we can do it.  I just tried and it reintroduced the bug that you found previously.  The DOM is updated correctly, but the displayed UI is not.  So you tap English first to change the language once, the DOM is updated and the `options` list is rebuilt.  But the UI is not updated, so Accented English is still on the list and tapping English selects French.