Aggregate views (7542, 7622)

This fixes [#7542](https://issues.dp.la/issues/7542) and [#7622](https://issues.dp.la/issues/7622).  It syncs the QA app with the new global reports in the ingestion code.  It also dynamically calculates CouchDB view counts.  

See [#7542](https://issues.dp.la/issues/7542), notes 19-22.
Is contentqa not already autoloading as an engine?

Ideally I'd like to remove both this line and L26, so `contentqa` is truly independant.  That may be academic, though.

Can you say something about what motivated this line?