Test only/dirty.
Alter the `aggregate` arguments to be more sensible.
Adding some sqlite aggregate helpers.
Remove sqlite aggregate tests.
Better granularity for registering user-defined methods.
As of 3.8.4.3-r1, APSW offers fetchone(), and 3.7.12-r1 added
description. No more hacky wrappers.
Avoiding changing how Model.save() works when the model has a composite primary key