Fix testing.
Don't unlink output files in the master.
Compute output file size on the worker.
Add default value for events_read for files in the database.
Switching to jobit-based accounting.
For jobit-based accounting, we do not need sets to count missed jobits: I switched to lists in bf48a5bf6ea0af63051307f69d0d4a140144ec57, but we only need to count them.