This introduces version 2 of that file. Version 1: - Only the job doc was saved, with 'missing_files' added inside it. Version 2: - '_meta' key was added to indicate version. - 'job' is saved in a 'job' key, 'misssing_files' still top-level key. - 'exclusion_filter', 'project_settings', and 'flamenco_manager_settings' keys were added.