Clean up an inconsistency in ZoneChangeEvent handling

Some places set a bit on the ZoneChangeEvent if a permanent was meant
to enter the battlefield tapped but only MeldCard ever read that bit to
determine whether things should come into play tapped.

Mage/src/main/java/mage/constants/Zone.java

@@ -44,7 +44,7 @@ public enum Zone {
         if (this.equals(EXILED)) {
             return "exile zone";
         }
-        return super.toString(); //To change body of generated methods, choose Tools | Templates.
+        return super.toString();
     }
 
 }