Merge pull request tetranz#122 from MartinRosserEB/master

[Select2EntityType] Set option data_class to null, tetranz#121

Author: tetranz

Form/Type/Select2EntityType.php

@@ -140,6 +140,7 @@ public function configureOptions(OptionsResolver $resolver)
             array(
                 'object_manager'=> null,
                 'class' => null,
+                'data_class' => null,
                 'primary_key' => 'id',
                 'remote_path' => null,
                 'remote_route' => null,