Fix Issue marcojakob#13: Improve on() stream when no type is specified

Run tests on console

Small readme change

Update to dart libraries 0.9.0

Change default of SimpleEventBus to sync (same as factory in EventBus)

Fix issue marcojakob#8: Add logging of events that flow through event…

… bus

Change default of SimpleEventBus to sync (same as factory in EventBus)

Invert changelog

Prepare v0.2.0

Remove all occurrences of @OverRide