Move async checks to their own patch so we can add more of them.

By: md_5 <md_5@live.com.au>

CraftBukkit-Patches/0040-Entity-Tracking-Ranges.patch

@@ -1,4 +1,4 @@
-From 9e7503dbe6691e74f3ef4d864b459da13597cb29 Mon Sep 17 00:00:00 2001
+From bc6b6883004dfcf9bae2842933ae9603f720412b Mon Sep 17 00:00:00 2001
 From: Aikar <aikar@aikar.co>
 Date: Wed, 20 Feb 2013 11:58:47 -0500
 Subject: [PATCH] Entity Tracking Ranges
@@ -83,10 +83,10 @@ index 3bfc669..804da57 100644
  
      public Block getBlockAt(int x, int y, int z) {
 diff --git a/src/main/java/org/bukkit/craftbukkit/Spigot.java b/src/main/java/org/bukkit/craftbukkit/Spigot.java
-index dcfac79..beab433 100644
+index d445c2e..3bfd29b 100644
 --- a/src/main/java/org/bukkit/craftbukkit/Spigot.java
 +++ b/src/main/java/org/bukkit/craftbukkit/Spigot.java
-@@ -339,4 +339,30 @@ public class Spigot {
+@@ -344,4 +344,30 @@ public class Spigot {
              ex.printStackTrace();
          }
      }