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/0004-Obfuscation-Helpers.patch

@@ -0,0 +1,25 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: md_5 <git@md-5.net>
+Date: Mon, 14 Apr 2014 10:38:04 +1000
+Subject: [PATCH] Obfuscation Helpers
+
+Provides several friendly named methods which map to a obfuscated method. Obfuscated methods which are used frequently should be added to this file to ease with updates to new Minecraft versions.
+
+diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/MinecraftServer.java
++++ b/src/main/java/net/minecraft/server/MinecraftServer.java
+@@ -0,0 +0,0 @@ public abstract class MinecraftServer implements ICommandListener, Runnable, IMo
+         }
+     }
+ 
++    // Spigot Start
++    public ServerConnection getServerConnection()
++    {
++        return this.p;
++    }
++    // Spigot End
+     public ServerConnection ai() {
+         return this.p;
+     }
+--