Fixed mob spawners being treated as solid blocks for the orebfuscator

Mob spawners are treated as solid blocks as far as the game is concerned for lighting and other tasks but for rendering they can be seen through, therefor we special case them so that the antixray doesn't show the fake blocks around them.

CraftBukkit-Patches/0066-Orebfuscator.patch

@@ -1,4 +1,4 @@
-From 843082121ed14c89160bebea30de24837bcc8f2b Mon Sep 17 00:00:00 2001
+From 149f988a0165f036934d7f0fd527404b5a53a224 Mon Sep 17 00:00:00 2001
 From: md_5 <md_5@live.com.au>
 Date: Thu, 16 May 2013 18:51:05 +1000
 Subject: [PATCH] Orebfuscator
@@ -128,15 +128,16 @@ index cbb4e77..106f27a 100644
      public void b(int i, int j, int k, Block block, int l) {
 diff --git a/src/main/java/org/spigotmc/AntiXray.java b/src/main/java/org/spigotmc/AntiXray.java
 new file mode 100644
-index 0000000..3853903
+index 0000000..8e69bff
 --- /dev/null
 +++ b/src/main/java/org/spigotmc/AntiXray.java
-@@ -0,0 +1,202 @@
+@@ -0,0 +1,212 @@
 +package org.spigotmc;
 +
 +import gnu.trove.set.TByteSet;
 +import gnu.trove.set.hash.TByteHashSet;
 +import net.minecraft.server.Block;
++import net.minecraft.server.Blocks;
 +import net.minecraft.server.World;
 +
 +public class AntiXray
@@ -324,7 +325,7 @@ index 0000000..3853903
 +
 +    private static boolean hasTransparentBlockAdjacent(World world, int x, int y, int z, int radius)
 +    {
-+        return !world.getType(x, y, z).r() /* isSolidBlock */
++        return !isSolidBlock(world.getType(x, y, z)) /* isSolidBlock */
 +                || ( radius > 0
 +                && ( hasTransparentBlockAdjacent( world, x + 1, y, z, radius - 1 )
 +                || hasTransparentBlockAdjacent( world, x - 1, y, z, radius - 1 )
@@ -333,6 +334,15 @@ index 0000000..3853903
 +                || hasTransparentBlockAdjacent( world, x, y, z + 1, radius - 1 )
 +                || hasTransparentBlockAdjacent( world, x, y, z - 1, radius - 1 ) ) );
 +    }
++
++    private static boolean isSolidBlock(Block block) {
++        // Mob spawners are treated as solid blocks as far as the
++        // game is concerned for lighting and other tasks but for
++        // rendering they can be seen through therefor we special
++        // case them so that the antixray doesn't show the fake
++        // blocks around them.
++        return block.r() && block != Blocks.MOB_SPAWNER;
++    }
 +}
 diff --git a/src/main/java/org/spigotmc/SpigotWorldConfig.java b/src/main/java/org/spigotmc/SpigotWorldConfig.java
 index 2ec047c..2c0501d 100644