…n 'config' of RatingType
Add the possibility to set up some default options of Select2 in the config.yml I add this possibility cause of the change from 4127f1e. I am using the element default value for many form in some project, so I've got some bugs. I think is better to have the possibility to change the default value.
…ymfony 2.1 and removed in Symfony 2.3)