Added a new method (getNumberKey();) in InventoryClickEvent.java. When the player uses the number keys to swap items between the hotbar and inventory, this method returns the key number they pressed (not the keycode). Also modified CraftItemEvent.java to work with this. Requires http://bit.ly/VzjOps

Signed-off-by: seifpic <seifpic@hotmail.com>