Add a job queue listing page.

This could be the basis for something more complex with specific job information
to aid debugging/monitoring.
Move admin type resources into their own namespace.

Configurable. Off by default.
Update Readme with information about admin scope.
Merge branch 'rh/queue-view' into next

* rh/queue-view:
  Update Readme with information about admin scope.
  Move admin type resources into their own namespace.
  Add a job queue listing page.