Bukkit

Added:

• Fixed make framework first error when: fern ,tallgrass, snow, Powerrails, detector rails is in the middle bottom block.

If itemdetector is loaded before multiworlds, it will get a nullpointer and lose all data, to fix this rename the multiworld plugin to "aaaMultiWorld" and bukkit will load this plugin as first of all your plugin, this should also fix all other problems with other plugins.