Added set 0 to collection serializer.

gemp-lotr/gemp-lotr-server/src/main/java/com/gempukku/lotro/collection/CollectionSerializer.java

@@ -27,6 +27,7 @@ public class CollectionSerializer {
             loadSet("1");
             loadSet("2");
             loadSet("3");
+            loadSet("0");
         } catch (IOException exp) {
             throw new RuntimeException("Problem loading collection data", exp);
         }