add celery app
set PYTHONUNBUFFERED for better logging
be sure celery tasks are imported
use celery workers for webhooks
use celery tasks instead of orchestrator handlers
remove orchestrator
remove broker
remove service_locator
remove interfaces module
remove message_base
remove last traces of injector
remove unused util modules
ignore visualize command for testing
remove unused exit_codes module
remove unused parsers module
remove unused env vars from tox.ini
remove unused requirements
Merge pull request #48 from mark-burnett/celery-refactor

Celery refactor