[animation-timeline] element <a-timeline-group> is currently broken

[kdorland]

You can tell from the demo (https://supermedium.com/superframe/components/animation-timeline/) which doesn't match the gif in the docs. My own experiments confirm this. It seems animations in a timeline-group are running in sequence instead of in parallel.

[kdorland]

Okay, wanted to work on this, so cloned master. It seems the issue is only with the unpkg.com component in the examples. The one in master works as it should. So only the demo and the examples need fixing.