reverse animation with negative timeScale
Merge branch 'add-reverse-animation' of https://github.com/oxyflour/three.js into dev
Docs: Updated Material.overdraw description. Fixes #5176.
UI: Added textAlign.
Fixed decals example order.
Update Scene.html

it's -> its
Merge pull request #5191 from Kiloblargh/patch-1

Update Scene.html
Support BufferGeometry in Box3.setFromObject()
Improved some examples.
Improved decal example.
WebGLRenderer: Using Object.keys() so the for loops can get optimised. See #5186.
Updated builds.
Merge pull request #5198 from WestLangley/dev-box3

Support BufferGeometry in Box3.setFromObject()
Box3: Simplified code.
Editor: Starting Script panel.
Editor: Fixed EditorControls so it doesn't pass the center.
Added support for constraining azimuthal rotation
Editor: Improvements to TransformControls.
Avoids unnecessary renders and object saves.
Editor: Yet more optimisations and clean up.
Updated builds.