Support container query

An existing effort is going on to provide this support via a contrib module. As an initial step a 2.x-dev version has been released which focus on modifying the codebase so that others can modify/extend rift.

Ok, I think this issue can be closed in favor of https://www.drupal.org/project/rift_cq →

Automatically closed - issue fixed for 2 weeks with no activity.