LDraw Parts Tracker now uses LDView

[Travis Cobbs]

No, antialiasing the edges of printed polygons isn't supported. It on the list of potential future enhancements. FSAA also isn't supported by my OSMesa renderer. I strongly suspect that OSMesa itself does support it, since it seems to be pretty full-featured. I'm not sure how hard it would be to integrate support for it into my OSMesa LDView. I could probably also implement fake FSAA in LDView in the snapshot saving code. Multiplying the line widths by two and then doing a 2-to-1 downsample by averaging each group of 4 pixels would be pretty straightforward.