Use the correct normals for maya exports with more than one mesh
Includes a few other minor refactorings. Fixes #5252
blender export vertexgroup holes fixed
Reverted 4439d901. Implemented material.visible in Projector. See #5256.
WebGLRenderer: Reverted non-hot-path Object.keys(). Moved hot-path ones to single-call paths. See #5186.
added simple skinned animation incl. .blend file with vertex groups other than bone-vertexgroups to demonstrate (fixed) exporter bug
Chrome 38 will come with it and Firefox already implemented it.
Appending only bone-vertexgroups to bone_array. This prevents Holes in mesh caused through stonger influences of other vertexgroups.