Added

• Audio: added/exposed 3D Spatial Audio method (stereo(), position(), orientation() and panner())
• Loader: image resources can now take an array of src urls with different format (preparing for later usage)
• Math: added a isPowerOfFour() method
• Renderer: new renderTarget property specifying the default CanvasRenderTarget to use when rendering

Changed

• Renderer: CanvasTexture is now deprecated and replaced by a new CanvasRenderTarget class

Fixed

• Core: prevent multiple temporary canvas creation when calling isWebGLSupported multiple times