0.11.4

• An image can now be considered standalone even if it is inside a
  link.
• Bugfixes:
  • HTML/EPUB: use raw (not HTML rendered) metadata in the places
    where HTML code is not appropriate. Templates can use this
    metadata with the foo_raw value.
  • HTML/EPUB: fix double-escaping/rendering issues in titles.
  • EPUB:
    • Escape title and author before feeding them to epub-builder.
    • Fix content.opf issue by not rendering first
      chapter's title (marked as beginning of document) in <guide>.
• Rendering:
  • HTML/EPUB: standalone images are now displayed centered.