Added full tile entity data support for all block types that use it, including chests, dispensers, furnaces, mob spawners, and note blocks.

src/main/java/org/bukkit/craftbukkit/block/CraftNoteBlock.java

@@ -0,0 +1,31 @@
+package org.bukkit.craftbukkit.block;
+
+import net.minecraft.server.TileEntityNote;
+import org.bukkit.block.Block;
+import org.bukkit.block.NoteBlock;
+import org.bukkit.craftbukkit.CraftWorld;
+
+/**
+ * Represents a note block.
+ * 
+ * @author sk89q
+ */
+public class CraftNoteBlock extends CraftBlockState implements NoteBlock {
+    private final CraftWorld world;
+    private final TileEntityNote note;
+
+    public CraftNoteBlock(final Block block) {
+        super(block);
+
+        world = (CraftWorld)block.getWorld();
+        note = (TileEntityNote)world.getTileEntityAt(getX(), getY(), getZ());
+    }
+
+    public byte getNote() {
+        return note.e;
+    }
+
+    public void setNote(byte n) {
+        note.e = n;
+    }
+}