Cartridge - Mezzanine v5.0

[skru]

I've forked stephenmcd/cartridge#346 to bring it up-to-date with v5.0.0-rc.1:

https://github.com/skru/cartridge/tree/feature/v5.0.0-rc.1

Currently I'm having trouble running the mezzanine tests from cartridge since the change to pytest.
historically running python setup.py test from cartridge would import the tests from mezzanine.bin.runtests:

from mezzanine.bin.runtests import main as _main
main = lambda: _main("cartridge")

Does anyone know how i can port this to pytest?

Also would it be best to submit a PR to https://github.com/fermorltd/cartridge
Or to https://github.com/stephenmcd/cartridge ?