v3.0.2: fixed 'none' not being considered a controller key

this created issues when with contrlller controller button binding configurations, where 'none' effectively couldn't be assigned to an action by the user

SPD-classes/src/main/java/com/watabou/input/ControllerHandler.java

@@ -246,6 +246,10 @@ public class ControllerHandler implements ControllerListener {
 	}
 
 	public static boolean icControllerKey(int keyCode){
+		if (keyCode == 0){
+			return true;
+		}
+
 		if (keyCode >= Input.Keys.BUTTON_A
 				&& keyCode <= Input.Keys.BUTTON_MODE){
 			return true;

SPD-classes/src/main/java/com/watabou/input/KeyEvent.java

@@ -82,4 +82,8 @@ public class KeyEvent {
 		}
 		keyEvents.clear();
 	}
+
+	public static boolean isKeyboardKey(int keyCode){
+		return keyCode == 0 || !ControllerHandler.icControllerKey(keyCode);
+	}
 }