Lode Runner version 2.21d, AI_VERSION=4

(1)Add handling of Y key to dig left, for German keyboards
   ==> suggested by Jan-Christoph  (https://github.com/jancborchardt)
   Modified files: lodeRunner.def.js, lodeRunner.key.js

lodeRunner.key.js

@@ -241,6 +241,7 @@ function pressKey(code)
 		keyAction = ACT_DOWN;
 		break;
 	case KEYCODE_Z:
+	case KEYCODE_Y:  //Y key to dig left, for German keyboards
 	case KEYCODE_U:	
 	case KEYCODE_Q:		
 	case KEYCODE_COMMA: //,
@@ -329,4 +330,4 @@ function handleKeyUp(event)
 	if(!event){ event = window.event; } 
 	if(recordKeyCode == event.keyCode && keyPressed != -1) keyPressed = 0;
 	return true;
-}
+}