v0.8.0: bugfixes:

- Hero FOV not being updated after they are pulled by golems
- Necromancer skeletons counting towards mob spawn limits
- New Tengu taking damage during phase 2 in rare cases
- Keybindings window not accepting unbound keys.

SPD-classes/src/main/java/com/watabou/noosa/ui/Button.java

@@ -78,7 +78,7 @@ public class Button extends Component {
 	private Signal.Listener<KeyEvent> keyListener;
 	
 	public GameAction keyAction(){
-		return GameAction.NONE;
+		return null;
 	}
 	
 	@Override