Restructure PaperSpigot as a new set of modules

Allows us much greater control over the Spigot portion of the code
and makes us more "proper"
Credit to @Dmck2b for originally passing the idea along a while back

CraftBukkit-Patches/0058-Fix-Broken-Async-Chat.patch

@@ -0,0 +1,38 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: md_5 <md_5@live.com.au>
+Date: Thu, 5 Dec 2013 13:55:53 +1100
+Subject: [PATCH] Fix Broken Async Chat
+
+
+diff --git a/src/main/java/net/minecraft/server/PacketPlayInChat.java b/src/main/java/net/minecraft/server/PacketPlayInChat.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/PacketPlayInChat.java
++++ b/src/main/java/net/minecraft/server/PacketPlayInChat.java
+@@ -0,0 +0,0 @@ public class PacketPlayInChat extends Packet {
+     }
+     // CraftBukkit end
+ 
+-    public void handle(PacketListener packetlistener) {
++    // Spigot Start
++    private static final java.util.concurrent.ExecutorService executors = java.util.concurrent.Executors.newCachedThreadPool(
++            new com.google.common.util.concurrent.ThreadFactoryBuilder().setDaemon( true ).setNameFormat( "Async Chat Thread - #%d" ).build() );
++    public void handle(final PacketListener packetlistener)
++    {
++        if ( a() )
++        {
++            executors.submit( new Runnable()
++            {
++
++                @Override
++                public void run()
++                {
++                    PacketPlayInChat.this.a( (PacketPlayInListener) packetlistener );
++                }
++            } );
++            return;
++        }
++        // Spigot End
+         this.a((PacketPlayInListener) packetlistener);
+     }
+ }
+--