A while back, we split out TestCase.assertQueries(),

djblets.db.query_catcher, and djblets.db.query_comparator into an

independent package, django_assert_queries, making these assertions

available outside of projects consuming Djblets.
Until now, the code was the same between the two, but advancements have

since been made in that project. Given that, we're no longer shipping a

separate copy, and instead recommending that package instead.
This will go through a standard deprecation period. We now depend on

django_assert_queries and re-export the appropriate modules for

compatibility purposes.
TestCase.assertQueries() will continue to work, with a deprecation

warning. All new code should use

django_assert_queries.assert_queries() instead. In time, that will

allow us to remove this as a hard dependency of Djblets, and keep it a

development-time dependency.

Unit tests pass in Djblets and Review Board.