gce provider options

[Eric Snow]

On Thu, May 28, 2015 at 1:46 AM, William Reade
<william.reade at canonical.com> wrote:
> It looks like it's a wart -- AFAICS it's just another name for
> image-metadata-url, but it's not actually hooked up to anything. Eric,
> Wayne, any comments?

image-endpoint isn't an alternative to image-metadata-url, which
allows you to specify where to look for the simplestreams metadata.
>From what I can tell image-endpoint is something new.

-eric