svgz not recognized in html output

[nowox]

I have my include as .. figure:: foo.* which I want to be expanded to "svgz", but it does not. I got the error:

None:None: WARNING: no matching candidate for image URI u'foo.*' 

However on visit_image in sphinx/writers/html.py I have this:

if uri.lower().endswith('svg') or uri.lower().endswith('svgz'):

From the mime_suffixes in sphinx/util/images.py the svgz extension is missing:

mime_suffixes = {
    '.pdf': 'application/pdf',
    '.svg': 'image/svg+xml',
}

[tk0miya]

I don't know this is a bug or feature enhancement.
But certainly it is very inconvenience if we can't use .svgz files to images.

So I'd like to add .svgz support into 1.5-release branch as a bug.
@shimizukawa how do you think?

Note:
W3C says mime-type for .svgz is "image/svg+xml".
https://www.w3.org/TR/SVG/intro.html#MIMEType

And the our documentation also says HTML builders supports "image/svg+xml".

supported_image_types = ['image/svg+xml', 'image/png', 'image/gif', 'image/jpeg']
http://www.sphinx-doc.org/en/1.4.8/builders.html#sphinx.builders.html.StandaloneHTMLBuilder

It's not too much to say that this is a bug :-)

[shimizukawa]

+1 for including to 1.5-release

[tk0miya]

Fixed at b799249.
Thank you for reporting