Audit Mode Formatter Integration

@mcquin 

Right now I only have the STDOUT formatter tied into the event bus.  I'm going to add the JSON formatter and update this review, but I wanted to get it started.
This was what was causing the issues with `fail` - you can now safely use that in a test if you want.  Basically I was getting the notification and reraising the failure, causing it to print out the same test failure twice.