Alias for providers (#1522)
Alias for providers (#1522)

* added alias for providers

* cs fix

jerome-fix/SonataMediaBundle,hug963/SonataMediaBundle,jerome-fix/SonataMediaBundle,hug963/SonataMediaBundle,OskarStark/SonataMediaBundle,hug963/SonataMediaBundle,hug963/SonataMediaBundle,jerome-fix/SonataMediaBundle,sonata-project/SonataMediaBundle,hug963/SonataMediaBundle,OskarStark/SonataMediaBundle,jerome-fix/SonataMediaBundle,OskarStark/SonataMediaBundle,OskarStark/SonataMediaBundle