Does initial rearchitecting by moving some conductors down into the application, keeping presenters and repositories in the controller, and removing interactors.
Make repository interface be on instance, not class.
Moved menu/ to menus/ to disambiguate
Finish frontend rearch.
Did away with interactors.

Also renamed presenter_classes to presenters
Also renamed repository_classes to repositories
Don't stomp on robyurkowski's changes.
Begin clean-up of backend pages.
Trying to fix up fetches pages.
Move presentation from conductor to controller.
Singular for singular; plural for collections.
Made the Abc::Presentation#present method more flexible.
Moved create_pages migration to delivery/shared
Made abc-delivery-shared a Rails Engine.
Load the shared engine when Rails is around.

Also improve test coverage by using the public interface of FetchesPages instead of send(:data)
Switched back to pat/combustion.

Josh's changes were merged upstream.