Fix autoloading when swiftmailer classes are already autoloaded
Inject sf_user into sfcontext::getServiceContainer() method
[sfDoctrinePlugin] Add missing relations columns of inherited classes in form generator
Partialy revert 7cbbe6b
Fix error where form cannot be submitted because of post_max_size=0

Symfony triggers an error on form submission if we set the post_max_size to 0 (to disable the limit)
Add 404 error message to user session, so it can be easily retrieved later

404 message can't be retrieved in prod env.