Per-world Creeper settings complete

- Added per-world Block Damage settings
- Added per-world Entity Damage settings
- Added creeper_settings database support
- Added world-specific Creeper menus
- Added automatic world registration/default inheritance
- Split Creeper listeners
- Updated Creeper behavior to use world settings
- Removed obsolete global Creeper indicators
- Adopted logger-based error reporting standard

src/main/java/com/rsscripting/serveradmin/gui/MainMenu.java

@@ -1,9 +1,7 @@
 package com.rsscripting.serveradmin.gui;
 
-import com.rsscripting.serveradmin.gui.GUIUtils;
-import com.rsscripting.serveradmin.gui.RSMenuHolder;
-import com.rsscripting.serveradmin.gui.KeepInventoryMenu;
-
+import com.rsscripting.serveradmin.menuholder.RSMenuHolder;
+import com.rsscripting.serveradmin.utils.GUIUtils;
 import org.bukkit.Bukkit;
 import org.bukkit.Material;
 import org.bukkit.inventory.Inventory;
@@ -57,6 +55,31 @@ public class MainMenu {
 
         inventory.setItem(11, creeper);
 
+        ItemStack mobDrops =
+                new ItemStack(
+                        Material.SKELETON_SKULL
+                );
+
+        ItemMeta mobDropsMeta =
+                mobDrops.getItemMeta();
+
+        if (mobDropsMeta != null) {
+
+            mobDropsMeta.setDisplayName(
+                    "§aMob Equipment Drops"
+            );
+
+            mobDrops.setItemMeta(
+                    mobDropsMeta
+            );
+
+        }
+
+        inventory.setItem(
+                13,
+                mobDrops
+        );
+
         ItemStack keepInventory =
                 new ItemStack(Material.CHEST);