Added Imgur support, closes #1

Yes indeed, it could have been different formats
 On Aug 5, 2014 11:52 PM, "Jan Henning Thorsen" <notifications@github.com>
wrote:

> In lib/Mojolicious/Plugin/LinkEmbedder/Link/Image/Imgur.pm:
>
> > +
> > +The title of the image, extracted from the retrieved page
> > +
> > +=cut
> > +
> > +has [qw/media_url media_title/];
> > +
> > +=head1 METHODS
> > +
> > +=head2 learn
> > +
> > +Gets the file imformation from the page meta information
> > +
> > +=cut
> > +
> > +sub learn {
>
> I would like if we could remove learn() and just construct the <img> tag
> directly from the URL. It looks like it's a mapping between "
> http://imgur.com/2lXFJK0" and "http://i.imgur.com/2lXFJK0.png", but
> that's maybe just a coincident..? Could it be other formats than png?
>
> —
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> <https://github.com/jhthorsen/mojolicious-plugin-linkembedder/pull/2/files#r15856017>
> .
>