refactored parametric argument signature. new THREE.ParametricGeometry( parametricFunction, uSements, ySegements, useQuads );

This should fix doubleSided objects causing misbehaved shadows reported in #1758.

The compiler was complaining about this.

Scene graph update is fast enough that on my system there is no change of FPS when removing the matrixAutoUpdate = false stuff.
Also compared with r48 and FPS went from 12fps to 20fps :D

It's now done once per frame / plugin instead of per material.

Fixes #1757

Fixes #1766

CanvasRenderer: Seems like Firefox will never implement globalCompositeOperation = 'darker'. Removing the hack for textures + lighting.

Added support for mesh vertices input source (non indexed in geometric primitive) texture coordinates,TEXCOORD, and color.

Starting to get complicated ^^

Ok, I'm starting to see the trickiness of the format :) Reusing vertices array by now.

Tinkering with the problem of images loading async...
Maybe this should be TextureLoader instead...