Fixed: Move to Materials only

THIS REMOVES SUPPORT FOR ITEM IDs!
Well, at least in things like /i and /give. They may still work in kits, but I’m not sure. 1.7 is pushing forward the move to item names instead of IDs, and the ID usage is deprecated in Bukkit. From this commit forward, you must use item names to spawn items. The items.csv file has replaced the IDs with the raw Material enum names from Bukkit.

Please also note that commands that determine the block you’re looking at will no longer see through transparent blocks. This is a (hopefully) short-term issue, as Bukkit has not made a method to get that block without using IDs.

This commit also flags tests to automatically skip, as they are currently broken.

If you notice any bugs, please let me know!