Add setting to make Milk easter egg permanent

Essentials/src/com/earth2me/essentials/EssentialsEntityListener.java

@@ -6,6 +6,7 @@ import org.bukkit.Location;
 import org.bukkit.Material;
 import org.bukkit.enchantments.Enchantment;
 import org.bukkit.entity.Ageable;
+import org.bukkit.entity.Breedable;
 import org.bukkit.entity.Arrow;
 import org.bukkit.entity.Entity;
 import org.bukkit.entity.LivingEntity;
@@ -57,6 +58,9 @@ public class EssentialsEntityListener implements Listener {
                 if (ess.getSettings().isMilkBucketEasterEggEnabled()
                     && hand != null && hand.getType() == Material.MILK_BUCKET) {
                     ((Ageable) eDefend).setBaby();
+                    if (ess.getSettings().isMilkBucketEasterEggPermanent() && eDefend instanceof Breedable) {
+                        ((Breedable) eDefend).setAgeLock(true);
+                    }
                     hand.setType(Material.BUCKET);
                     attacker.getBase().setItemInHand(hand);
                     attacker.getBase().updateInventory();

Essentials/src/com/earth2me/essentials/ISettings.java

@@ -297,6 +297,8 @@ public interface ISettings extends IConf {
 
     boolean isMilkBucketEasterEggEnabled();
 
+    boolean isMilkBucketEasterEggPermanent();
+
     boolean isSendFlyEnableOnJoin();
 
     boolean isWorldTimePermissions();

Essentials/src/com/earth2me/essentials/Settings.java

@@ -1313,6 +1313,11 @@ public class Settings implements net.ess3.api.ISettings {
         return config.getBoolean("milk-bucket-easter-egg", true);
     }
 
+    @Override
+    public boolean isMilkBucketEasterEggPermanent() {
+        return config.getBoolean("milk-bucket-easter-egg-permanent", false);
+    }
+
     @Override
     public boolean isSendFlyEnableOnJoin() {
         return config.getBoolean("send-fly-enable-on-join", true);

Essentials/src/config.yml

@@ -566,6 +566,9 @@ last-message-reply-recipient-timeout: 180
 # Toggles whether or not left clicking mobs with a milk bucket turns them into a baby.
 milk-bucket-easter-egg: true
 
+# Toggles whether or not the above feature causes the mob to be a permanent baby. Only works for breedable mobs.
+milk-bucket-easter-egg-permanent: false
+
 # Toggles whether or not the fly status message should be sent to players on join
 send-fly-enable-on-join: true