Undead horse leashing

default false to match vanilla, but option to allow undead horse types to be leashed.

Spigot-Server-Patches/0087-Undead-horse-leashing.patch

@@ -0,0 +1,36 @@
+From 995fdcf36842e733b9e019c1e4e394522fcc7468 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Fri, 18 Mar 2016 14:19:19 -0400
+Subject: [PATCH] Undead horse leashing
+
+default false to match vanilla, but option to allow undead horse types to be leashed.
+
+diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+index 56e513e..4474104 100644
+--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
++++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+@@ -279,4 +279,9 @@ public class PaperWorldConfig {
+     private void useHopperCheck() {
+         useHopperCheck = getBoolean("use-hopper-check", false);
+     }
++
++    public boolean allowLeashingUndeadHorse = false;
++    private void allowLeashingUndeadHorse() {
++        allowLeashingUndeadHorse = getBoolean("allow-leashing-undead-horse", false);
++    }
+ }
+diff --git a/src/main/java/net/minecraft/server/EntityHorse.java b/src/main/java/net/minecraft/server/EntityHorse.java
+index ec1e7f6..19532b8 100644
+--- a/src/main/java/net/minecraft/server/EntityHorse.java
++++ b/src/main/java/net/minecraft/server/EntityHorse.java
+@@ -167,6 +167,7 @@ public class EntityHorse extends EntityAnimal implements IInventoryListener, IJu
+     }
+ 
+     public boolean a(EntityHuman entityhuman) {
++        if (world.paperConfig.allowLeashingUndeadHorse) { return super.a(entityhuman); } // Paper
+         return !this.getType().h() && super.a(entityhuman);
+     }
+ 
+-- 
+2.7.3
+