If notifications are enabled in the config, Adds a eventHandler
accepting Notification{} payloads to the internal Bus.  The
eventHandler then marshals the payload into json and sends it
to a rabbitmq topic exchange using the
Notification.Priority+Noticiation.EventType as the routing key.
eg.  INFO.account.created

Currently, notifications are only being emitted for
INFO.account.created
INFO.account.updated
INFO.user.created
INFO.user.updated

Basic import of json dashboards is working, needs more work to handle updates, and continous watching, #22

Fontend handling of account role to hide user actions and links that the user does not have access to

a lot of work on database schema and migration setup, postgres now works, every integration test passes for all database types, only token table left to do