Add obfuscation helper patch to assist update process.

By: md_5 <git@md-5.net>

CraftBukkit-Patches/0072-Log-Cause-of-Unexpected-Exceptions.patch

@@ -0,0 +1,26 @@
+From be9a009c45b548f6f8b7a14d0cce4da369cac035 Mon Sep 17 00:00:00 2001
+From: md_5 <git@md-5.net>
+Date: Wed, 18 Dec 2013 13:39:14 +1100
+Subject: [PATCH] Log Cause of Unexpected Exceptions
+
+
+diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
+index c3011fd..66bea38 100644
+--- a/src/main/java/net/minecraft/server/MinecraftServer.java
++++ b/src/main/java/net/minecraft/server/MinecraftServer.java
+@@ -479,6 +479,12 @@ public abstract class MinecraftServer implements ICommandListener, Runnable, IMo
+             }
+         } catch (Throwable throwable) {
+             i.error("Encountered an unexpected exception", throwable);
++            // Spigot Start
++            if ( throwable.getCause() != null )
++            {
++                i.error( "\tCause of unexpected exception was", throwable.getCause() );
++            }
++            // Spigot End
+             CrashReport crashreport = null;
+ 
+             if (throwable instanceof ReportedException) {
+-- 
+1.8.3.2
+