Temporary fix for ZF1/ZF2 incompatibility

I know we are in the middle of the progress to swap from ZF1 to ZF2, but right now we can't use concrete5 with locales.

Let's fix this with a temporary fix;)

PS: this fixes this critical error:
```
Argument 1 passed to Zend_Locale_Data::setCache() must be an instance of Zend_Cache_Core,
instance of Zend\Cache\Storage\Adapter\Filesystem given,
called in .../concrete/src/Localization/Localization.php on line 195
```