Use ContainerAwareEventDispatcher to lazy-load subscribers
Merge branch 'master' into container-dispatcher

* master:
  Fix lock file for fab-phpunit-resultprinter
  Add dev-dependency for whatthejeff/fab
  Update deps
Add integration test for EventSubscriberPass
Merge branch 'container-dispatcher'

* container-dispatcher:
  Add integration test for EventSubscriberPass
  Use ContainerAwareEventDispatcher to lazy-load subscribers