The ContentHistoryBundle need to be added to the Integrated skeleton, it should be installed by default.
Don't forget to add the changes to the deployment actions of this issue also.
Add to AppKernel.php:
new Integrated\Bundle\ContentHistoryBundle\IntegratedContentHistoryBundle(),
Add to routing:
integrated_content_history:
resource: "@IntegratedContentHistoryBundle/Resources/config/routing.xml"
prefix: "/admin"
Add to composer.json:
"integrated/content-history-bundle": "~0.6",