Writing string of bitset for contracts.

src/engine/objects/Mob.java

@@ -1160,7 +1160,7 @@ public class Mob extends AbstractIntelligenceAgent implements Delayed {
         // Setup equipset for contract
 
         if (this.contract != null)
-            this.equipmentSetID = this.contract.getEquipmentSet();
+            this.equipmentSetID = this.contract.equipmentSet;
 
         // Mobiles default to the building guild.