Qemu-i386 fixes

[jade_nekotenshi]

For a long time there's been an issue with the mouse on qemu-system-i386 which, as far as I know, has made it essentially impossible to run NEXTSTEP/OPENSTEP on it. I just put in a fix for that in my qemu fork (see the SPARC thread), and it's working for me. Mac users, and anyone else who needs to use Qemu and can't use Virtualbox, please feel free to test it out!