Removed unnecessary string concatanations to reduce GC activity

WebGLRenderer: Render sprites along opaque and transparent objects

add Vector2.cross method

Quaternion: Added .transformTo()

Remove redundant code from WebGLGeometries

FBXLoader: reorganise code and create FBXTreeParser

Changed typo for "max" description of Box2

NodeMaterial - r7 (2)

fix change code after onBeforeCompile ( sharing old code )

from "lower upper" to "upper"

HDRCubeTextureLoader: Fix usage of LoadingManager

Examples: clean up

Examples: Ensure CanvasTexture is used in webgl_materials_texture_canvas

FBXLoader: remove use of Uint8Array.indexOf

If 'use strict' is set in this scope, calling the funtion loadHDRData at line 180 in HDRCubeTextureLoader will leave "this" undefined , and line 111 inside the function loadHDRData will throw expection when accessing "this.manager".