alpha.4

Changelog:

• More documentation
• Affine texture-mapping
• A single distributable source file
• Some improvement to n-gon clipping: entire n-gons are no longer clipped against the near plane, as only individual vertices now get dropped if they clip, leading to a less jarring visual effect. Still no interpolation to create new vertices at the point of clipping, though
• PNG2JSON has the option to export to raw RGBA-8888
• Mesh(), ngon(), and render() now take most of their parameters as properties of an object you pass them
• You can now get some performance information as a return object from render() - how long the rendering took, etc. It's undocumented, at the moment, but you can look at the source to see what render() returns
• Performance is probably a little worse than in alpha.3

Notes:

• The Blender export script is still bad
• Asset workflow is so-so