Defer RegisterPropelModelsPass

The service 'cache.annotations', which is resolved when the metadata
reader is received from the container in the Pass, is not available
at that point in the container compilation process.

This changeset defers the PropelModelsPass until a point in time, where the
container is fully accessible.

Ref: symfony/symfony#19205

VichUploaderBundle.php

@@ -2,6 +2,7 @@
 
 namespace Vich\UploaderBundle;
 
+use Symfony\Component\DependencyInjection\Compiler\PassConfig;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\HttpKernel\Bundle\Bundle;
 use Vich\UploaderBundle\DependencyInjection\Compiler\RegisterPropelModelsPass;
@@ -20,6 +21,6 @@ public function build(ContainerBuilder $container)
     {
         parent::build($container);
 
-        $container->addCompilerPass(new RegisterPropelModelsPass());
+        $container->addCompilerPass(new RegisterPropelModelsPass(), PassConfig::TYPE_BEFORE_REMOVING);
     }
 }