Added Builderswands with different tiers (wood: 1x1; stone: 3x1; iron: 3x3; gold: 5x3; diamond: 5x5). Sneaking sets the range of the wand to 1x1.
Added Beheading-Modifier (crafted with enchanted Wither-Skeleton-Skull)
Added world-lists to the config. You need to write the exact name of the World in the List in order for the plugin to work in that world. (as requested by Grnknght )

Fixed Bug, where Caveair would be 'broken' with the Power-Modifier and costs Durability. You can't 'break' Caveair anymore.

Version increased from a2.1 to a3

Note: After updating modifiers created in previous versions can be broken and are not able anymore to modify tools. Be sure to use all existing modifiers before updating.