So this crontab has:
```
40 9 * * * %(z_cron)s update_weekly_downloads
35 5 * * * %(z_cron)s update_addon_download_totals
40 5 * * * %(z_cron)s weekly_downloads
40 5 * * * %(z_cron)s update_app_downloads --settings=settings_local_mkt
```

Are some unnecessary ? Are we properly avoiding to touch `Webapp`s in the crons that are AMO-only ?