End login process for filtered IPs

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

CraftBukkit-Patches/0030-Entity-Tracking-Ranges.patch

@@ -1,4 +1,4 @@
-From fa94cec348e0cfc5b654ccde91839f80bd52f3f2 Mon Sep 17 00:00:00 2001
+From 97e803109d5c03dd4d13e357b576da42dac7e10d Mon Sep 17 00:00:00 2001
 From: Aikar <aikar@aikar.co>
 Date: Wed, 20 Feb 2013 11:58:47 -0500
 Subject: [PATCH] Entity Tracking Ranges
@@ -78,7 +78,7 @@ index 94cb855..fe7b8b0 100644
  
      public Block getBlockAt(int x, int y, int z) {
 diff --git a/src/main/java/org/bukkit/craftbukkit/Spigot.java b/src/main/java/org/bukkit/craftbukkit/Spigot.java
-index c8d1110..1117309 100644
+index 3b29fea..afa0f04 100644
 --- a/src/main/java/org/bukkit/craftbukkit/Spigot.java
 +++ b/src/main/java/org/bukkit/craftbukkit/Spigot.java
 @@ -16,12 +16,16 @@ import net.minecraft.server.EntityComplexPart;
@@ -128,7 +128,7 @@ index c8d1110..1117309 100644
 +        return Math.min(world.maxTrackingRange, range);
 +    }
 +
-     public static void filterIp(PendingConnection con) {
+     public static boolean filterIp(PendingConnection con) {
          if (filterIps) {
              try {
 diff --git a/src/main/resources/configurations/bukkit.yml b/src/main/resources/configurations/bukkit.yml