Fix missing Twig runtime on Symfony < 3.2 and Twig 2.x
Fix missing Twig runtime on Symfony < 3.2 and Twig 2.x

Th3Mouk/SonataPageBundle,sonata-project/SonataPageBundle,Th3Mouk/SonataPageBundle,sonata-project/SonataPageBundle,Th3Mouk/SonataPageBundle,Th3Mouk/SonataPageBundle