Add queue management for doctrine backend
Use interface constant as query parameter.

Message class does not exist in this scope, so the cleanup command ends in a fatal PHP error.
Merge pull request #66 from bangpound/master

Fix fatal error in cleanup command.
getEntityManager() is deprecated since Symfony 2.1.

see https://github.com/doctrine/DoctrineBundle/blob/master/Registry.php#L71
Fix PR
Fix headers
Merge pull request #65 from Freckz/TypedNotifications

Add queue management for doctrine backend
Merge pull request #67 from bangpound/fix-deprecation-notices

getEntityManager() is deprecated since Symfony 2.1.
Merge branch 'sonata/master'

Conflicts:
	composer.json