Add traits to purge the DB and load fixtures in PHPUnit tests (#432)

Add DoctrineBundle to the dependencies (#428)

Fix the Symfony dependency (#422)

Remove the dependency to `symfony/symfony` in favour of `symfony/framework-bundle` and allow Symfony
4.

Allow Symfony 4 (#383)

Fix Travis build with lower deps (#379)

Fix purger injection (#376)

Allow Symfony 4.0 (#375)

Fix the append option (#345)

Upgrade to the last version of Alice (#297)

* Upgrade to the last version of Alice

Fix path for 1.x stable documentation (#289)