Reformatting official HTMLBook specification as HTML5 content instead of AsciiDoc for better formatting.
Adding symlink pointing index.html at specification.html
Merge pull request #123 from oreillymedia/htmlbook-spec

Reformatting spec document in HTML5
Merge branch 'master' of github.com:oreillymedia/HTMLBook into schema
Making specification.html the symlink instead of index.html
Adding additional EPUB references.
Merge pull request #124 from oreillymedia/gh-pages

Updates to spec document
Merge branch 'master' of github.com:oreillymedia/HTMLBook into schema
Updating spec link.
Merge branch 'master' of github.com:oreillymedia/HTMLBook into schema
Template matching for h1-h6 inside <header> element now in place; still need to update other areas of h1-h6 processing to support <header> parent (including data-pdf-bookmark and title.markup)