started large rewrite: removing mediator

Dockerfile

conversion_service/config/__init__.py

conversion_service/config/celery.py

conversion_service/config/settings/common.py

conversion_service/config/urls.py

conversion_service/config/wsgi.py

conversion_service/manage.py

docker-compose.yml

osmaxx/api_client/conversion_api_client.py

osmaxx/conversion/migrations/0016_auto_20210827_1630.py

osmaxx/conversion/models.py

osmaxx/conversion/serializers.py

osmaxx/conversion/tasks.py

osmaxx/conversion/urls.py

osmaxx/excerptexport/models/export.py

osmaxx/excerptexport/models/extraction_order.py

osmaxx/excerptexport/rest_api/views.py

...cerptexport/static/excerptexport/scripts/estimate_size.js

...rptexport/static/excerptexport/scripts/utm_zone_filter.js

osmaxx/job_progress/urls.py