`update_weekly_downloads` is the one I'm removing and replacing with `update_app_downloads --settings=settings_local_mkt`.
`update_addon_download_totals` updates the average and total downloads for addons.
`weekly_downloads` updates the weekly downloads for addons.

I'm going to look at the code to ensure that we're not inserting anything into the `download_counts` table for webapps since this is the starting point for these cron jobs. I wouldn't want that to update the fields I'm setting in my new cron.