Parameterize whether to output <html>/<head>/<body> wrapper or not; without it, output may not be well-formed, but can easily be folded into a custom wrapper.
Handling for new $include-html-wrapper param
Merge branch 'master' of github.com:oreillymedia/docbook2htmlbook into sanders
Do not add XML declaration.
Merge pull request #10 from oreillymedia/sanders

Additional handling for HTML wrappers