libepubgen-0.1.0

- Fix various validation problems, pointed out by epubcheck.
- Add EPUB3 support.
- Split on headings: add user-friendly section names.
- Support writing CSS styles inline in the XHTML streams.
- Support various image wrap types.
- Support embedded fonts.
- Support cover images.
- Support footnotes.
- Support EPUB3 fixed layout.

libepubgen-0.0.1

- Fix escaping of HTML entities.
- Use symbol visibility on Linux. The library only exports public
  classes/functions now.
- Print debugging output to stderr.
- Switch to C++11.

libepubgen-0.0.0

- First release.
