[Done] Volunteer needed :)

[xoft]

I'm somewhat against removing items, because some people, or even worse, plugins, may be using them. Most of those names are what those things used to be called in the older versions of MineCraft, so they are, technically, valid.
Of course, using the "official" names is better, and for new items, I think the official names should be used, but let's not break things (yet).

Thanks for the changes, that was exactly what I was after. I had already done some modifications to that file myself, so I had to merge the changes, but your work is definitely appreciated. I will commit the changes when I verify that they didn't break any code.