* add libs for celery + redis
* move redis & cache config to settings/base.py
* move rmq & celery config to settings/base.py
* BROKER -> BROKER_TYPE
* allow multiple database types
* flake8
* add sqlite db creation to dockerfile
* fix ci
* fix ci
* debug
* remove some defaults
* remove prints
* use local memory as cache on ci
* debug
* add DATABASE_DEFAULTS
* add ci test for sqlite + redis
* add ci test for sqlite + redis
* add ci test for sqlite + redis
* debug
* add redis healthcheck
* fix sqlite
* fix dev settings
* refactor dev settings
* tweak ci settings
* clear cache properly between tests
* move db and broker types to constants
* add librabbitmq deps
* use amqp instead of librabbitmq