Engine: revert katello_ namespacing on app/lib/katello/notifications
Engine: revert katello_ namespacing on app/lib/katello/navigation
Engine: revert katello_ namespacing on app/lib/katello/dashboard
Engine: revert katello_ namespacing on app/helpers
Engine: revert katello_ namespacing on app/controllers
Engine: revert katello_ namespacing on app/assets/javascripts
Engine: revert katello_ namespacing on engines/bastion
Engine: add Katello::Engine.helpers to be viewable by Foreman