fix django commands hack. now django doesn't require specific overrid…

[davidleon]

…e commands hook. django staticfiles runserver should properly run. and test against django 2.0

[ghost]

This doesn't appear to work on Python 2.7, which unfortunately is still the majority of our user base.

[davidleon]

new to python maybe someone can help to alter the code to be python2 and 3 compatible? not sure why it's not working in python 2.7

[ghost]

Almost there. Rerun this command and iterate until it passes. Then I'll help you clean this up.

[in PyInstaller directory]
pip install -e .
pytest tests/functional/test_hooks/test_django.py::test_django[onedir]