Fixed example.
fix some issues with the webgl renderer
Fix a small problem in UCSCharacter
Merge pull request #4999 from gero3/FixRenderer

fix some issues with the webgl renderer
Merge pull request #5000 from gero3/FixMorphTargetHuman

Fix a small problem in UCSCharacter
fix the way of removeing a mesh
Merge pull request #5002 from gero3/FixMemoryProblem

fix the way of removeing a mesh
CanvasRenderer: Ignore CompressedTextures.
Updated builds.
Object3D: Added traverseVisible.
WebGLRenderer: Removed scene.__webglSprites.
WebGLRenderer: Removed scene.__webglFlares.
Updated builds.
WebGLRenderer: Removed autoUpdateObjects property.
WebGLRenderer: Code clean up.
WebGLRenderer: Public initWebGLObjects to private initObjects.
Updated builds.
Object3D: Fixed traverseVisible.
Projector: Switch to object.traverseVisible and code clean up.
Updated builds.