MagicCarpet

• Fixes the distance measure error
• Removes sand and ice as a acceptable material. To prevent griefing.

CB1185 works with this, however /ml ring will cause major lag. I don't know why, it was working fine before. I assume its something to do with the new  Bukkit / Minecraft. I'll look into this but I'll be honest I'm not sure I can fix this. I may disable the ability to use /ml ring.

Certain blocks also seem to cause lag, another issue with CB1185 / 1.8.1 I believe. I didn't notice any of these before. :S