Currently MeshBasicMaterial/MeshLambertMaterial doesn't support shadows. Not sure if they'll get that back.

This reverts commit 644d6a21.

Conflicts:
	src/materials/Material.js

This reverts commit 85733da4.

If in the example `webgl_geometry_colors_lookuptable` I change 
https://github.com/mrdoob/three.js/blob/dev/examples/webgl_geometry_colors_lookuptable.html#L183 to `lut.setMin( -1000 );`, the scale goes from 0 to 3000, not from -1000 to 2000. Anything else than 0 as minimum scale value is broken. This pull request negative

This commit enables three.js to manage the stencil buffer via material
properties.

Didn't change the link to the source code at the end of
docs/api/extras/geometries/LatheGeometry.html.