The epub-embedded-font parameter in docbook-style-xsl has changed to epub-embedded-fonts (note added "s" on the end) as of version 1.76.1. Please add support for the renamed parameter or EPUBs will not build.
Changed epub-embedded-font to epub-embedded-fonts, updated Requires and BuildRequires in trunk specfile to docbook-style-xsl req >= 1.76.1 since this change is incompatible with earlier versions.
back ported fix to branches/publican-2x Committed revision 1798.
I can successfully build and open an EPUB, so it must have worked! Verified.