Major change in the design of the page.
 There is no longer a header, which was wasting space.
 The menu now uses icons, so that it can be made smaller and we have
 enough height to fix everything (issue #7).
 Show the selected person's name and id in the menu, so that users
 know which pedigree or persona page will be displayed if they click
 on the icon.
Icons could be improved.
Fix display of marriage information in the fanchart