Changed maintenance command names to better match namespace
Enable maintenance-backup-read-only state
Allow creation of public user if missing
Allow creation of public user if missing (and do it properly this time)
Return 503 in backup-read-only mode for job start and job cancel
Renamespaced Job controller tests
Renamespaced User and UserCreation controller tests
Renamespaced Job and Task command tests
Renamespaced Maintenance command tests
Broke up Job controller test for easier per-action testing