Make new_staging_job and new_delete_job more uniform
The 'priority' param in new_staging_job was not used. I added the same parameter to new_delete_job. The 'files' parameter can now also be a dictionary for new_staging_job
The 'priority' param in new_staging_job was not used. I added the same parameter to new_delete_job. The 'files' parameter can now also be a dictionary for new_staging_job