* no-sysystem-message option to disable system message in output html
* initial-header-level which is compatible with docutils writers
* pep8 coding style
* title and hyperlinks visitor addons
* html escaping node text
* classifier support (visit_classifier method)
* using node instance instead of tagname for compare
* Package definition fix (description, COPYING, TODO, etc...)
* raw html fix
* responsive view declared by html viewport header
* foot-hyperlinks option to enabling hyperlinks references in output
(disable by default)
* stylesheet support