Convert Minecraft server world files into MCserver world files.

[FakeTruth]

So I'm looking at your code, and I'm trying to understand what the hell is going on in the first couple of lines you're actually reading the file and I didn't get it. So I look up the mcr file definition on the wiki, and I see this table and I finally understand what's going on

But seriously... WHAT THE FUCK. Why the hell does he want to cripple the shit out of an integer (4 bytes) to save a single byte per chunk.. I mean.. come on..