Configure.With now take an instance of the configuration builder
Removing Configure.CreateBus()

Create bus is redundant given the new config api
Marking CreateBus as obsolete
Changed the settingsholder prop back to internal
Fix failing acceptance tests for the outbox
Removed the option to tweak configure in the actp tests
Renaming ConfigurationBuilder to BusConfig
Obsoleting Configure.With

In favour of Bus.Create(new BusConfiguration())
Stop using configure in tests
Merge pull request #2324 from Particular/remove-configure.createbus

Remove configure.createbus