add SonataCoreBundle loading

Author: lsmith77

src/Symfony/Cmf/Component/Testing/HttpKernel/TestKernel.php

@@ -45,6 +45,7 @@ public function init()
         $this->registerBundleSet('sonata_admin', array(
             '\Sonata\BlockBundle\SonataBlockBundle',
             '\Sonata\AdminBundle\SonataAdminBundle',
+            '\Sonata\CoreBundle\SonataCoreBundle',
             '\Sonata\jQueryBundle\SonatajQueryBundle',
             'Knp\Bundle\MenuBundle\KnpMenuBundle',
             '\Sonata\DoctrinePHPCRAdminBundle\SonataDoctrinePHPCRAdminBundle',