In setup.py test command, exit with returncode > 0 if any test was failing.
In setup.py test command, exit with returncode > 0 if any test was failing.

Exit from `python setup.py test` in the same way as `trial` does.

vodkina/GlobaLeaks,vodkina/GlobaLeaks,vodkina/GlobaLeaks,vodkina/GlobaLeaks