Blender Git Loki

Ztransp render has a built-in maximum for amount of faces it can render
on top of each other. Was 100, which gave noise like this in this image;
http://www.blender.org/bf/hairnew.jpg

Made it 200, which solves it for a million hair polygons;
http://www.blender.org/bf/hairnew1.jpg

Also note that hair renders go much faster and better if you insert a real
solid head in it, that will prevent hairs on the back to be inserted in the
buffers. ANd don't make the head Ztransp!