Re: webcomponents: <import> instead of <link>

Thanks for your feedback, folks.

I presumed that <link rel="import"> is one-shot just because it is how
<element> works and I felt both are analogous, but apparently this is not a
common perception.

It seems like making <link rel="import"> dynamically-updatable isn't that
controversial. I'll try that way.
Filed https://www.w3.org/Bugs/Public/show_bug.cgi?id=20683