[Fluxus] commits - nurbs bug

[gabor papp]

i found that the wireframe nurbs bug i reported about a week ago happens 
on osx only. it seems that the gluNurbsSurface call changes 
glPolygonMode from the default GL_FILL to GL_LINE, when the nurbs 
surface is drawn in wireframe. i saved and restored the polygon mode on 
osx, although i'm not sure if this is another apple driver bug or our 
fault. let me know if this also happens on other operating systems.

best,
gabor