Remove patch #15 - optimized chunk unload

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

CraftBukkit-Patches/0047-Enable-Foreign-Language-Signs.patch

@@ -0,0 +1,22 @@
+From b2c3886fd681e1c68189efb0aa601abe8d3da099 Mon Sep 17 00:00:00 2001
+From: md_5 <md_5@live.com.au>
+Date: Fri, 21 Jun 2013 17:53:03 +1000
+Subject: [PATCH] Enable Foreign Language Signs
+
+
+diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
+index e5937fc..1422d67 100644
+--- a/src/main/java/net/minecraft/server/PlayerConnection.java
++++ b/src/main/java/net/minecraft/server/PlayerConnection.java
+@@ -1578,7 +1578,7 @@ public class PlayerConnection extends Connection {
+                     flag = false;
+                 } else {
+                     for (i = 0; i < packet130updatesign.lines[j].length(); ++i) {
+-                        if (SharedConstants.allowedCharacters.indexOf(packet130updatesign.lines[j].charAt(i)) < 0) {
++                        if (!SharedConstants.isAllowedChatCharacter(packet130updatesign.lines[j].charAt(i))) { // Spigot
+                             flag = false;
+                         }
+                     }
+-- 
+1.8.1.2
+