* Added pytest-json-report plugin
	- modifying app-opts in setup.cfg
	- adding hook to all conftest.py files in repo
	- setting report to be saved to test_root/log/warnings.json
	- Writing custom logic to save json report to avoid overwrite if pytest called twice
This was created to allow us to easily parse through test warnings in jenkins

Fix the issue that was preventing us from upgrading pytest.  pytest does some manipulation of test packages that prevents `pkg_resources` from loading resources from them, but used to contain a workaround for the problem.  That workaround was [removed](https://github.com/pytest-dev/pytest/issues/5392) in 4.6.0 as a performance enhancement when pytest switched from `pkg_resources` to `importlib-metadata` for its own entrypoint handling.  This tripped up one of our test modules which defined classes that loaded templates from inside a test package.  Moving these resources to the parent package fixes the problem.

More and more, `pkg_resources` is being abandoned in favor of `importlib-metadata` and `importlib_resources` as they have a simpler design with much better performance.  However, `importlib_resources` doesn't support loading files from any directory which isn't itself a Python package (and doesn't allow direct use of paths including directories within the package).  Jinja2 chose a [different approach](https://github.com/pallets/jinja/pull/1082) that we may want to emulate in our resource handling.

Also fixed usage of a removed `pytest.raises()` parameter and a bug in our configuration of the `common/lib` tests that became a problem after the upgrade.

* Switch make upgrade to Python 3.5

* bok-choy fixes, constrain django-debug-toolbar

* Remove flaky bok-choy test

-bumped django-model-utils version to support django 22

Upgrade django-debug-toolbar

- Upgrade edx-drf-extensions to 2.4.5
- Removed constraint to 2.4.0, because 2.4.2 introduces a workaround for
ARCH-1210 by putting the problematic code behind a django setting.
- Remove unused JWT_AUTH_REFRESH_COOKIE setting.

ARCH-418, ARCH-1269, ARCH-1044

fix broken toggle

guincorn just released its version on 9th-nov-2019 (20.0.0)
and it requires Python 3.x >= 3.4.
so adding constraint < 20.0.0

execute make upgrade

We also pin back edx-lint to fix a regression we introduced when we
started having to roll back all the requirements changes.

Issue 851 seems to have been resolved and issue 8.5.2 while still open is
not occuring with the latest version of pip-tools.

PROD-533

Getting 500 error on stage after upgrading to latest version
of newrelice.

We had to pin json diff because of how we pull prod requirements into
testing.txt

Both python 3 related but different reasons. numpy dropped python 3
support and faulthandler was pulled into python in python 3.3

* Updating Python Requirements

* Don't rely on pip-compile cache

* Fix tornado dependency resolution

Bumping edx-organizations will add history to the Organization model.

DE-1510

This also pins scipy to version <=1.2.1 in constraints.txt, as 1.3.0 requires py3.5 or above