Don't teleport dead entities

Had some issue with this in past, and this is the vanilla logic.
Potentially an old CB change that's no longer needed.

Spigot-Server-Patches/Don-t-teleport-dead-entities.patch

@@ -0,0 +1,22 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Tue, 22 Mar 2016 00:55:23 -0400
+Subject: [PATCH] Don't teleport dead entities
+
+Had some issue with this in past, and this is the vanilla logic.
+Potentially an old CB change that's no longer needed.
+
+diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/Entity.java
++++ b/src/main/java/net/minecraft/server/Entity.java
+@@ -0,0 +0,0 @@ public abstract class Entity implements ICommandListener {
+     }
+ 
+     public Entity teleportTo(Location exit, boolean portal) {
+-        if (true) {
++        if (!this.dead) { // Paper
+             WorldServer worldserver = ((CraftWorld) getBukkitEntity().getLocation().getWorld()).getHandle();
+             WorldServer worldserver1 = ((CraftWorld) exit.getWorld()).getHandle();
+             int i = worldserver1.dimension;
+--