Improved item & drop-point checking + Dojo fixes + Duey revamp

Fixed some issues with items being dropped sometimes out-of-reach and in a weird way.
Improved item checking function, now looking up one-of-a-kind items properly.
Fixed some issues with dojo skills and possible exploits in dojo progression.
Improved Duey, now displaying better info to players.

src/client/inventory/ItemFactory.java

@@ -133,7 +133,7 @@ public enum ItemFactory {
                     items.add(new Pair<>(item, mit));
                 }
             }
-
+            
             rs.close();
             ps.close();
             con.close();