Initial work to move delivery into modules
Fix most tests
Allow specifying delivery_method to Bugsnag.notify overrides, and force resque to be synchronous
First pass at fixing the tests
Try to fix remaining tests
Stop using deliver_exception_payload in specs

It was originally intended to be a "last ditch" point of interception,
but WebMock does a much better job of this.
Merge branch 'configure-delivery'