WebGLRenderer: Reverted non-hot-path Object.keys(). Moved hot-path ones to single-call paths. See #5186.
Updated builds.
Reverted 4439d901e0e3e9b8a6dd3559a665062ad1988344. Implemented material.visible in Projector. See #5256.
Updated builds.
Merge pull request #5247 from grgr/dev

blender export vertexgroup holes fixed
Use the correct normals for maya exports with more than one mesh

Includes a few other minor refactorings. Fixes #5252
Merge pull request #5259 from sgrif/sg-maya-update

Use the correct normals for maya exports with more than one mesh
Skinning example clean up.
More cleaning on skinning example.
Added PlaneBufferGeometry.
Examples improvements.
BufferGeometry: Workaround for computeTangents requiring a drawcall.
Cloning normals in Geometry.fromBufferGeometry(). Bad things happen otherwise.
Workaround for minecraft ao example. Geometry.vertexColors isn't empty anymore.
Updated builds.
Geometry.fromBufferGeometry() also cloning colors.
Updated builds.
VTKLoader to BufferGeometry.
Implemented THREE.Audio and THREE.AudioListener. See #5128.
PlaneGeometry: Added console.info().