Close #26: Introduce service_bus_manager config key
Close #25: Introduce direct message routing
Close #10: Expend public interface of ServiceBus
Close #29: Simplify receiver logic
Close #32: Remove QueueLoader
Simplify configuration

- Close #33 just one map fo commands and one for events
- Close #34 Remove config root
- Remove localSynchronousInitializer
Close #35: Fix broken tests
Close #27: Adjust samples
Close #28: Update README