#88 #89 : use pytest + reorganise settings (#92)

- !88 pytest on existing tests
- !89 reorganise settings (! see notes for deployment)

Co-authored-by: bkfox <thomas bkfox net>
Reviewed-on: #92

pytest.ini

@@ -0,0 +1,4 @@
+[pytest]
+DJANGO_SETTINGS_MODULE = instance.settings
+# -- recommended but optional:
+python_files = tests.py test_*.py *_tests.py