Drop chance added to item.

src/engine/objects/Item.java

@@ -43,6 +43,7 @@ public class Item extends AbstractWorldObject {
     public Enum.ItemContainerType containerType;
     public ReentrantLock lootLock = new ReentrantLock();
     public int ownerID;  //may be character, account, npc, mob
+    public float drop_chance;
     private int flags; //1 = isIDed
     public int numberOfItems;
     public float durabilityCurrent;