Added test for SVG in an <img> element (fixes #107)
Added metadata to `svgasimg` and changed from base64 back to ascii encoding of the image
Comment wording tweak
Added note about negative result in IE9
Merge branch 'master' into svgasimg
Reverted svgasimg test to use base64, for IE9 support
Merge pull request #913 from stucox/svgasimg

Add detect for SVG in `<img>` tag