Fixes bug 970406 - pull ADI/blocklist pings from Hive with crontabber

This job fetches ADI aggregates daily from Hive using a SQL query. Many thanks to @peterbe and @lars for help with the mocking, which proved to be daunting.
Either way, it'll work (removing the `[` and `]`) if it's a list or a generator. 

If there's a choice it's always a good idea to use the generator expression in case the thing you're using supports it. 
For example if you do `sum(for number in something)` if `something` is a generator it'll use it as such but the code will work equally if `something` is a list.