Rotation of sphericalEnvMap for reflections is linked to camera rotation.

Description: The sphericalEnvMap property of the standard material, used for reflections, doesn't reflect properly. It seems to inherit position and rotation from the camera, the problem here being the rotation; the map should not rotate, as that is not how reflections work.

• A-Frame Version: 0.7.0
• Platform / Device: PC / Windows 7 / Google Chrome Version 61.0.3163.100 (Official Build) (64-bit)
• Reproducible Code Snippet or URL: check a codepen here.

Note(s): I'm by no means a full-fledged web developer, I work as a 3D artist and got interested in the possibilities of A-Frame for the visualization industry. I have some knowledge of css/html and less knowledge of js, therefore I can only hope this is the right way to report a bug, and I'd really like to thank you for the so promising and amazing framework that is A-Frame!

The equirectangular panorama in the snippet comes from here: https://goo.gl/Lu8y3X.

Start with the linked CodePen and trace how the standard material's sphericalEnvMap reflection is affected by camera position and rotation. Confirm that rotating the camera does not rotate the reflection map, then verify the behavior in the provided reproduction.