Honor EntityAgeable#ageLock (#1481)

* test

* Obfuscation helper

* Fix #1459

Spigot-Server-Patches/0383-Honor-EntityAgeable.ageLock.patch

@@ -0,0 +1,21 @@
+From f77b542b755eef4f372e17a29f5604f43c6b8ea2 Mon Sep 17 00:00:00 2001
+From: BillyGalbreath <Blake.Galbreath@GMail.com>
+Date: Sun, 23 Sep 2018 20:59:53 -0500
+Subject: [PATCH] Honor EntityAgeable.ageLock
+
+
+diff --git a/src/main/java/net/minecraft/server/EntityAgeable.java b/src/main/java/net/minecraft/server/EntityAgeable.java
+index 1d7c998aa..a11bdaadc 100644
+--- a/src/main/java/net/minecraft/server/EntityAgeable.java
++++ b/src/main/java/net/minecraft/server/EntityAgeable.java
+@@ -82,6 +82,7 @@ public abstract class EntityAgeable extends EntityCreature {
+     }
+ 
+     public void setAge(int i, boolean flag) {
++        if (ageLocked) return; // Paper - GH-1459
+         int j = this.getAge();
+         int k = j;
+ 
+-- 
+2.19.0
+