Prevent formatter v4 from being installed
Prevent formatter v4 from being installed

The media bundle is not yet compatible with it, there is at least
FormatterMediaExtension::getTwigExtension() that needs a signature
change.
Closes https://github.com/sonata-project/SonataFormatterBundle/issues/367

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