Mvc\I18n\Translator -> setLocale

Hi,
   I have upgraded to 2.3 dev from 2.2.6 to test. It seems that the translator does not have the setLocale method anymore. Is this a known BC break?
Here is the error I got:

```
2014/03/11 04:01:45 [error] 1288#0: *1385 FastCGI sent in stderr: "PHP message: PHP Fatal error:  Uncaught exception 'Zend\Mvc\Exception\BadMethodCallException' with message 'Unable to call method "setLocale"; does not exist in translator' in /vagrant/vendor/zendframework/zendframework/library/Zend/Mvc/I18n/Translator.php:47
Stack trace:
#0 /vagrant/module/BAppBase/Module.php(121): Zend\Mvc\I18n\Translator->__call('setLocale', Array)
#1 /vagrant/module/BAppBase/Module.php(121): Zend\Mvc\I18n\Translator->setLocale('en')
#2 [internal function]: BAppBase\Module->onBootstrap(Object(Zend\Mvc\MvcEvent))
#3 /vagrant/vendor/zendframework/zendframework/library/Zend/EventManager/EventManager.php(468): call_user_func(Array, Object(Zend\Mvc\MvcEvent))
#4 /vagrant/vendor/zendframework/zendframework/library/Zend/EventManager/EventManager.php(207): Zend\EventManager\EventManager->triggerListeners('bootstrap', Object(Zend\Mvc\MvcEvent), Array)
```

Regards,
Norbert.