* unittest.TestCase.subTest support (#91).
* remove support for setup.py's test command. Support for this command has
been dropped by modern setuptools versions and correspondingly has been
removed from most zopefoundation packages; zope.testrunner now follows.
* setup.py's ftest command is now only supported when the used setuptools
version still supports test.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-zope.testrunner?expand=0&rev=46
