==================
- Test changes: Depend on ``nti.testing`` 3.0 and refactor certain
internal test methods for improved isolation. The dependency on
ZODB is now >= 5.6.0.
Some internal, undocumented test attributes (``current_mock_db``, a
ZODB.DB, and ``current_transaction`` which was actually a ZODB
Connection) have been removed. The former is replaced with
``nti.testing.zodb.ZODBLayer.db``, and there is no replacement for
the later.
- Add the module ``nti.site.testing``. This contains extensible,
documnted versions of the functions that were previously in
``nti.site.tests`` as private helpers.
- Add support for Python 3.8.
- Make ``hostpolicy.install_main_application_and_sites()`` set the
*root_alias* correctly. Previously, instead of setting it to the
*root_name*, it set it to the *main_name*.