A preliminary SVG support has been implemented, powered by CairoOutputDev from poppler.
Since CairoOutputDev is not exposed by poppler, I have to maintain a copy of a few files inside pdf2htmlEX. Also cairo and freetype are required for this feature. This feature can be enable/disabled by the ENABLE_SVG cmake
A new option `--bg-format` has also been added, to specify the format for the background images. Currently only 'png' and 'svg' are supported.
(This is also a test for auto forwarding blog posts to the mailing list)