Clean integration of skeletal Animation blending.
Merge branch 'dev' into blending-take2
Added an example to showcase skeletal animation blending.
Fixed formatting and added comments.
Merge branch 'dev' of https://github.com/mrdoob/three.js into blending-take2
Added vertex coloring to the bone helper to help illustrate direction.
Fixed the name of the BoneHelper object.
Reduced the joint box size and fixed color settings for the bones.
Converted the bone helper into a skeleton helper.
updated a comment
Cleaned up some leftovers and changed formatting for better consistency with the existing three.js codebase.
Fixed the unpausing of animations that are not playing.
Completed Box3 documentation
Merge branch 'dev' of https://github.com/TatumCreative/three.js into dev

Conflicts:
	docs/api/math/Box3.html
Merge branch 'blending-take2' of https://github.com/insominx/three.js into dev
Fixed compiler warning.
Tab indentations.
Updated builds.
Added skinning blending example to list.
Trying to get SkeletonHelper to always be visible.
Updated builds.