[Dune] Restructured webpage

[Markus Blatt]

Hi,

I just happened to look on our new restructured webpage.

Really nice navigation.

A few comments though:

Is it intended that the headlines are orange with a blue vertical bar
in front? 
See http://www.dune-project.org/dune.html

On some pages the navigation looks different which is kind of
disturbing, see
e.g. http://www.dune-project.org/doc/installation-notes.html 
or http://autobuild.dune-project.org/checklog 

Cheers,

Markus