Examples using templates are busted (especially in Chrome)

[cvan]

All examples that use templates now have camera issues; I see this error in Chrome but not in Firefox:

THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.

Anime UI in Chrome vs Firefox:

The Spheres & Fog example doesn't have any camera errors but also appears quite busted in Chrome:

---

This must be related to a recent aframe-core change and now since the merge it's become apparent. Perhaps related to #794?

[cvan]

This is due to a change with the loading process that was upstreamed in the aframe-core -> aframe merge. @ngokevin is revisiting the Primitives work I started by extending <a-entity> so we don't have to worry about load order. This will still pose a problem for folks who ever use templates (or even just injecting inert objects into the scene that aren't registered custom elements of <a-entity> yet) - so we'll need to fix the core of the issue later.

[cvan]

So note to everyone: just use entities everywhere for the time being.

[cvan]

this has been magically fixed by #776. so if we actually wanted to, we could keep templates in their current form. but I'm comfortable with removing them until we've confident we need them (see issue #930).

[ngokevin]

Examples using templates mostly still not working.

[ngokevin]

#883