This allows using a UUIDField primary key along with the JSON session
serializer.

Thanks to Trac alias jamesbeith for the report and Simon Charette
for the initial patch.

This is a performance optimization and also fixes test errors with the
upcoming merge of contrib tests into tests/. The tests failed on MySQL
because the models with GeometryField were being checked but the
non-GIS MySQL backend didn't know how to handle them.

Removed fragile algorithm to find which application a model belongs to.

Fixed #21680, #21719. Refs #21794.

During the autumn DST change, the template engine would fail to convert
the naive representation of now when USE_TZ = True. Passing now in UTC
eliminates the issue.

Thanks mbertheau and tricoder42.

Refs #23714.

This reduces the length of rope RequestContext gives users to hang
themselves with.

Thanks Alex Hill for the report and Tim Graham for the review.

Used setUpTestData, client login/logout and manager's count() method.

Thanks to Tim for the review.

Thanks to Tim for the review.

Numpy will be used in both the geos and gdal modules,
so the import should sit in the parent module gis.