Fixed/enabled code for mipmapping in hardware.  There were some problems since CS may not generate enough mipmaps to "fully populated" the mipmaps, from an OpenGL point of view.
Fixed/enabled code for mipmapping in hardware.  There were some
problems since CS may not generate enough mipmaps to
"fully populated" the mipmaps, from an OpenGL point of view.


git-svn-id: 28d9401aa571d5108e51b194aae6f24ca5964c06@2585 8cc4aa7f-3514-0410-904f-f2cc9021211c

crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS