If this is given an order of [dk, za, fr_CA] a request for en_UK will
be looked up in en_UK, en, dk, za, fr_CA, fr before trying the default
locale.
If strict flag is given in the array, the above example would instead look
in en_UK, dk, za, fr_CA before trying the default locale. In other words,
the implicit fallback is not applied to the locales in the fallback rule.
Here is an example:
array('strict' => FALSE, 'order' => array('dk', 'za'))