New features
[411e095] Display an error message when an entity that requires a __toString() method doesn't define it (@javiereguiluz)
Bug fixes
[3ddaf66] Avoid undefined index notice for custom action's forms (@tomaszhanc)
[904f70c] Don't access view for forms used in custom views (@xabbuh)
[58ad5e5] Make sure that the sticky form actions display above anything else (@javiereguiluz)