Create routes.yaml

Merge pull request #4 from bolt/update-reference-widget-with-new-inte…

…rface

Update ReferenceWidget.php

Update composer.json

Update EventListener.php

Update Extension.php

Create page.html.twig

Update Extension for Controller

Merge pull request #3 from bolt/test/add-twig-dependency

requiring twig (for test)

Update Extension.php

Updating eventlistener