Improved the CREDITS a little bit:

Improved the CREDITS a little bit:
- removed emails (Ingo, in a irc discussion, you were the 1st one to say that emails should go to the package CREDITS file, not the in-game one). I have already done that.
- and just made something here and there.

I don't really like the nicknames, but I left them there. I think we should have a credits section in the webpage and there will be the best place to put them. (OT: we also need a screenshots section and old version downloads should be avaible).
Futhermore, I would still prefer one in-game credits with descriptions.

SVN-Revision: 795