5.0 Release

[jordisala1991]

Feature Request

• Create a fake Admin with all the options that this bundle support (one for each..)
• Test that admin with functional tests (display page + submit form trying some advanced functionality like https://github.com/sonata-project/SonataFormatterBundle/blob/4.x/src/Extension/GistExtension.php
• We should probably move the logic from: https://github.com/sonata-project/SonataMediaBundle/blob/4.x/src/Twig/Extension/FormatterMediaExtension.php to this bundle
• We could improve our templates removing some duplicated code
• Update docs

[jordisala1991]

Wdyt @VincentLanglet is there something missing?