Update to latest CB upstream.

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

CraftBukkit-Patches/0041-Entity-Tracking-Intervals.patch

@@ -0,0 +1,26 @@
+From 74a63a8ecb9e74b2143d1be51b97fae01c971a7b Mon Sep 17 00:00:00 2001
+From: md_5 <md_5@live.com.au>
+Date: Sat, 23 Mar 2013 13:31:23 +1100
+Subject: [PATCH] Entity Tracking Intervals
+
+Send boats at the same speed as their player to remove the illusion of lag / jerkiness.
+---
+ src/main/java/net/minecraft/server/EntityTracker.java | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/main/java/net/minecraft/server/EntityTracker.java b/src/main/java/net/minecraft/server/EntityTracker.java
+index 32ce51d..7cd2c26 100644
+--- a/src/main/java/net/minecraft/server/EntityTracker.java
++++ b/src/main/java/net/minecraft/server/EntityTracker.java
+@@ -58,7 +58,7 @@ public class EntityTracker {
+         } else if (entity instanceof EntityMinecartAbstract) {
+             this.addEntity(entity, 80, 3, true);
+         } else if (entity instanceof EntityBoat) {
+-            this.addEntity(entity, 80, 3, true);
++            this.addEntity(entity, 80, 2, true); // Spigot - send at same speed as player
+         } else if (entity instanceof EntitySquid) {
+             this.addEntity(entity, 64, 3, true);
+         } else if (entity instanceof EntityWither) {
+-- 
+1.8.1-rc2
+