Added a playSound method to World which accepts a String parameter.

Similar to the respective method in Player.

src/main/java/org/bukkit/craftbukkit/CraftWorld.java

@@ -1319,6 +1319,17 @@ public class CraftWorld implements World {
         getHandle().a(null, x, y, z, CraftSound.getSoundEffect(CraftSound.getSound(sound)), SoundCategory.MASTER, volume, pitch); // PAIL: rename
     }
 
+    public void playSound(Location loc, String sound, float volume, float pitch) {
+        if (loc == null || sound == null) return;
+
+        double x = loc.getX();
+        double y = loc.getY();
+        double z = loc.getZ();
+
+        PacketPlayOutCustomSoundEffect packet = new PacketPlayOutCustomSoundEffect(sound, SoundCategory.MASTER, x, y, z, volume, pitch);
+        world.getMinecraftServer().getPlayerList().sendPacketNearby(null, x, y, z, volume > 1.0F ? 16.0F * volume : 16.0D, this.world.dimension, packet);
+    }
+
     public String getGameRuleValue(String rule) {
         return getHandle().getGameRules().get(rule);
     }