class and table schema now conform to JSON

src/engine/objects/NPC.java

@@ -894,7 +894,7 @@ public class NPC extends AbstractCharacter {
             this.stamina.set(this.staminaMax);
         }
 
-        if (this.parentZone.isGuildZone)
+        if (this.parentZone.guild_zone)
             if (NPC.GetNPCProfits(this) == null)
                 NPCProfits.CreateProfits(this);