Proper parsing of power grants

src/engine/objects/ItemTemplate.java

@@ -354,8 +354,9 @@ public class ItemTemplate {
 
             if (powerGrantsArray.isEmpty() == false) {
 
-                for (Object grantEntry : powerGrantsArray) {
-                    JSONObject powerGrant = (JSONObject) grantEntry;
+                for (Object grantArrayEntry : powerGrantsArray) {
+                    JSONObject powerGrantEntry = (JSONObject) grantArrayEntry;
+                    JSONObject powerGrant = (JSONObject) powerGrantEntry.get("granted_powers");
 
                     for (Object key : powerGrant.keySet()) {
                         String powerString = (String) key;