1.0.0: Symfony 4, PHP 7

CHANGELOG for 1.0

0.8.0: Merge pull request #48 from othillo/test-environment-variables

process configuration on the extension

0.7.0 invokable controllers

Merge pull request #44 from krizon/support-invokable-controllers

Support invokable controllers in annotation toggle listener

0.6.0: YAML configuration

Merge pull request #39 from othillo/patch-vnu

Allow yml configuration