class and table schema now conform to JSON

src/engine/devcmd/cmds/RemoveBaneCmd.java

@@ -34,7 +34,7 @@ public class RemoveBaneCmd extends AbstractDevCmd {
             return;
         }
 
-        if (!zone.isGuildZone) {
+        if (!zone.guild_zone) {
             throwbackError(pc, "This is not a player city.");
             return;
         }