Fix parsing bug in Update Query. Fix parsing bug in Insert Query. Add mapping interface to Model. Implement OrderMixin, with ORDER and NULLS Enums. Add `result` field to Query.
Add `LEQ` condition type. Ensure that batch updates don't fire with nothing to update. Add `cast_row` to `update_many` for handling typed `NULL`s.
Redesigned data and core systems to be public-capable.