Refactored isShield and removed equipflag.

src/engine/gameManager/CombatManager.java

@@ -891,7 +891,7 @@ public enum CombatManager {
         if (tarOff == null)
             return false;
 
-        return tarOff.getItemBase().isShield() != false;
+        return ItemTemplate.isShield((tarOff));
     }
 
     private static boolean isRanged(Item item) {