* separate plugin worker for heroku
* plugin server for dev with less concurrency
* add back plugins script
* move beat log to beat
* move starting the beat into the celery worker
* add optional process types for plugins and celery
* premium redis for heroku review apps
* fix broken script
* proc/dyno names are alphanumeric
* singularize
* premium-0 redis for all heroku apps, not just review apps
* premium-0 redis also for review apps
* remove heroku redis modifications
* remove out of scope code
* run beat in bg
* add warning script to settings and docker-worker in case REDIS_URL is not found
* test celery heartbeat
* save celery heartbeat in redis
* /_stats/ with worker heartbeat
* refactor top content
* show worker stats
* heartbeat delay to 90sec
* update worker error message
* remove line
* add redbeat schdeduler
* add redbeat for local development