Use `git clone --recursive` when suitable
Add displaying submission limits in CWS
Do not show negative numbers for remaining submissions.
Allow admins to enable/disable workers from AWS
Always ignore results from disabled workers

Not doing that had the side effect of re-enabling a disabled worker
when it reported a finished action. This is unexpected wrt timeouts,
but it would be easy to trigger now that admins can disable workers.
Fix closure in switching questions page
Add new author