Zope.testing

==================

- LP 560259: Fix subunit output formatter to handle layer setup
errors.

- LP 399394: Add a ``--stop-on-error`` / ``--stop`` / ``-x`` option to
the testrunner.

- LP 498162: Add a ``--pdb`` alias for the existing ``--post-mortem``
/ ``-D`` option to the testrunner.

- LP 547023: Add a ``--version`` option to the testrunner.

- Add tests for LP 144569 and 69988.

https://bugs.launchpad.net/bugs/69988

https://bugs.launchpad.net/zope3/+bug/144569

==================

- Remove import of ``zope.testing.doctest`` from ``zope.testing.renormalizer``.

- Suppress output to ``sys.stderr`` in ``testrunner-layers-ntd.txt``.

- Suppress ``zope.testing.doctest`` deprecation warning when running
our own test suite.

==================

- Fix broken ``from zope.testing.doctest import *``

==================

- No changes; reupload to fix broken 3.9.0 release on PyPI.

==================

- Modify the testrunner to use the standard Python ``doctest`` module instead
of the deprecated ``zope.testing.doctest``.

- Fix ``testrunner-leaks.txt`` to use the ``run_internal`` helper, so that
``sys.exit`` isn't triggered during the test run.

- Add support for conditionally using a subunit-based output
formatter upon request if subunit and testtools are available. Patch
contributed by Jonathan Lange.

==================

- Downgrade the ``zope.testing.doctest`` deprecation warning into a
PendingDeprecationWarning.