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

Bukkit-Patches/0017-Fix-Plugin-Message-API-Disconnects.patch

@@ -0,0 +1,28 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: md_5 <md_5@live.com.au>
+Date: Sat, 19 Oct 2013 12:59:42 +1100
+Subject: [PATCH] Fix Plugin Message API Disconnects
+
+
+diff --git a/src/main/java/org/bukkit/plugin/messaging/StandardMessenger.java b/src/main/java/org/bukkit/plugin/messaging/StandardMessenger.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/plugin/messaging/StandardMessenger.java
++++ b/src/main/java/org/bukkit/plugin/messaging/StandardMessenger.java
+@@ -0,0 +0,0 @@ public class StandardMessenger implements Messenger {
+         Set<PluginMessageListenerRegistration> registrations = getIncomingChannelRegistrations(channel);
+ 
+         for (PluginMessageListenerRegistration registration : registrations) {
+-            registration.getListener().onPluginMessageReceived(channel, source, message);
++            // Spigot Start
++            try
++            {
++                registration.getListener().onPluginMessageReceived( channel, source, message );
++            } catch ( Throwable t )
++            {
++                org.bukkit.Bukkit.getLogger().log( java.util.logging.Level.WARNING, "Could not pass incoming plugin message to " + registration.getPlugin(), t );
++            }
++            // Spigot End
+         }
+     }
+ 
+--