I don't think we ever use this, and it slows things down. If we want to use it,
we should just do so on a couple of builds rather than all of them.

Signed-Off-By: Matthias Kesler <krombel@krombel.de>

Signed-off-by: Adrian Tschira <nota@notafile.com>

add missing comma

It's just a few tests, but it will at least prevent a few files from
regressing. Also, it makes it easiert to check your code against py36
while writing it.

Signed-off-by: Adrian Tschira <nota@notafile.com>

- this ensures we end up with a working virtualenv which we can use for other
things.

We now need to set PYTHONPATH when running the unit tests; update tox config to
do so.

No features of Bash are used here, so using /bin/sh makes it more portable to systems that don't have Bash natively (like BSD systems).

Outputs:
 * results.xml
 * coverage.xml
 * violations.flake8.log

`tox` will run all tests
`tox tests.api.test_auth.AuthTestCase` will run just the tests in AuthTestCase