Using `src` as parameter breaks things

[aerni]

It took me forever to figure out why I was running into an exception rendering this:

<a-components.image src="{{ image:url }}" />

Turns out src is a reserved keyword and can't be used as a parameter. Maybe a mention in the docs would be great. Or perhaps this is a bug after all?

[JohnathonKoster]

AH yea, I can see how that would be annoying 🙈

I'll have a think - its caused by it forwarding to an internal tag behind the scenes that has a src param. I can probably just rename that, as nobody should be directly using that internal tag.