Useful for tracking WebGL API calls overhead.

As per discussion in https://github.com/mrdoob/three.js/commit/08a37d34c16d3ccd19191251edd945be62a9f3e8

See discussion here: https://github.com/mrdoob/three.js/commit/6e002f324a06f6f766b50c930732a9994fdd4ac6#commitcomment-1234473

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.