bump deps
Tests for roles ! First time I feel like i'm really doing BDD :D

* Create base context for domains using pure behat instead of mink and without screenshot on test fails
* Create the domain context, using phpunit's matchers to test values
* Create simple role feature with higher level language to be able to use it for both domain and UI tests
Implement the Role class to make the Domain context pass. Feels great to have all the logic instead a "model" instead of the partly in the controller :D