Correctly register pending connection when using legacy network handler.

CraftBukkit-Patches/0020-Netty.patch

@@ -1,4 +1,4 @@
-From 1890313f461b35a0e1807543cac1b8881d984827 Mon Sep 17 00:00:00 2001
+From 581d883c923294c725f719f2061591c9525d6565 Mon Sep 17 00:00:00 2001
 From: md_5 <md_5@live.com.au>
 Date: Tue, 23 Apr 2013 11:47:32 +1000
 Subject: [PATCH] Netty
@@ -73,6 +73,19 @@ index bd7e41c..b04d8a1 100644
          if (!this.getOnlineMode()) {
              this.getLogger().warning("**** SERVER IS RUNNING IN OFFLINE/INSECURE MODE!");
              this.getLogger().warning("The server will make no attempt to authenticate usernames. Beware.");
+diff --git a/src/main/java/net/minecraft/server/DedicatedServerConnectionThread.java b/src/main/java/net/minecraft/server/DedicatedServerConnectionThread.java
+index ef7e10d..4638983 100644
+--- a/src/main/java/net/minecraft/server/DedicatedServerConnectionThread.java
++++ b/src/main/java/net/minecraft/server/DedicatedServerConnectionThread.java
+@@ -82,7 +82,7 @@ public class DedicatedServerConnectionThread extends Thread {
+ 
+                 PendingConnection pendingconnection = new PendingConnection(this.e.d(), socket, "Connection #" + this.c++);
+ 
+-                this.a(pendingconnection);
++                ((org.spigotmc.MultiplexingServerConnection) this.e).register(pendingconnection); // Spigot
+             } catch (IOException ioexception) {
+                 this.e.d().getLogger().warning("DSCT: " + ioexception.getMessage()); // CraftBukkit
+             }
 diff --git a/src/main/java/net/minecraft/server/INetworkManager.java b/src/main/java/net/minecraft/server/INetworkManager.java
 new file mode 100644
 index 0000000..6fcc5d7