WS-195, WS-76: Notification System now working and sending emails on request submission and completion

Charlotte Hausman authored 4 years ago and Nathan Hertz committed 4 years ago

Messaging system is now running on a more robust foundation:
- `kombu` package for AMQP networking
- New Messenger and Router objects
- New message format
- Easy-to-use callback subscribing
- Can now get messages anywhere in the system easily and send replies back easily

Updated `testing/utils/conftest.py` with reliable mock data that can be used in tests; added `shared/workspaces` tests

updated coveragerc config files to reflect changes to the shared packages location and modified run-tests.sh

Renamed docker-compose.local.yml to docker-compose.yml
Renamed Condaless.dockerfile.v2 to Dockerfile.base
Modified references to files that were renamed

system since I figure that's on its way out the door)