WebServer: switch to html5 and use html5shiv for pre IE 9 browsers
use font-size:0 for #seekbar td to fix a visibly white line showing below the seekbar
add normalize.css trimmed down to our needs
use pre for the debug section
add align-right class
use Arial font and remove the inherited font from #menu td and #statusbar td
browser.html is valid html5
player.html is valid html5 except for the seekbarchleft and seekbarchright whose width is set via js in the html
fix a few warnings