#4 Replace use of GL_ARB_imaging for Nouveau

[G4JC]

Nvidia graphics cards are primarily supported by the http://nouveau.freedesktop.org driver. The problem is GL_ARB_imaging has been depreciated and no longer is being worked on by them. The solution is for games and programs to NOT use GL_ARB_imaging. Would be nice to see an updated version of Zero-Ballistics which does not use this. Also native amd64 builds would be nice so we don't need ia32-libs + libglu i386. ;)