User Deprecated: Using XML mapping driver with XSD validation disabled is deprecated and will not be supported in Doctrine ORM 3.0. (XmlDriver.php:60 called by App_KernelDevDebugContainer.php:946, https://github.com/doctrine/orm/pull/6728, package doctrine/orm
Implements https://github.com/doctrine/DoctrineBundle/pull/1679 to silence the logged deprecation message