Implemented EPUB2/EPUB3/DUAL parameters. Start of generation of EPUB3 nav
Use .xhtml for extension, restored graphic copy, fixed minor opf issues
Refined generation of XHTML for HTML5. Working on suppressing content-type meta entry
Implemented generation of dcterms:modified metadata entry
Generate cover-graphic manifest item
Generation of HTML nav structure works. Need to hook up as HTML Toc for EPUB3
Fixed more HTML5 markup details. Handled MathML correctly. Generate all content files as HTML5