* standardrb
* Rename all `*_worker` references to `*_job`
* Rename Worker references to Job in test suite
* Rename ApiJob to ApiAjJob to avoid collisions
* Rename remaining Worker to Job references
* Rename WorkController to JobController
Including routes
* fixup! Rename WorkController to JobController
* Simplify Web UI sessions
Remove all of the hacks and support infrastructure around Rack sessions. Rails provides this by default so we don't need it for 95% of users. The other 5% need to provide a Rack session.
This is a big change and has the potential to break installs so it deserves at least a minor version bump.
See also #4671, #4728 and many others.