Update WebGLRenderer doc

Remove `.autoUpdateObjects` property and clean-up constructor parameter
list.

mdcs code style change for negative numbers

Handling of color with alpha

Changes spacing rule for signed numbers: from `cameraFront.set( 0, 0, -
1 );` to `cameraFront.set( 0, 0, -1 );`

The rule for subtraction expression doesn't change: ` 2 - 1`.

Addresses comments in #6898

 cleanup of files for MrDoob's code style

Fix skeleton helper rotation in skinning animation example

Make the info panel invisible to mouse