Initial layout of what work the Page object has to do, based on non object version.
prepare method to collect all information from the bindery, and to splice in
results from scripts on the page.
render method to do the xsl stylesheet conversion of the docbook xml to html
template method to create html menues and merge the text into the template.
from order, the template for one page can not run before all pages have
run prepare. (sitemap does not have all titles before that)
Solution for language menu and how to deal with a missing page for
a language has to be implemented.