New method to unregister events

Added a new method to unregister events by their type

Bugfix: Untyped event listeners not called on typed events

1.3.2

Bugfix: Untyped event listeners for typed events did not get called

Fixed JUnit Dependency

Bugfix: JUnit was not scoped as a test-only dependency

Updated package and groupId, added Javadoc

1.3

Changed package and groupId to net.cydhra; updated version to 1.3