install path for desktop guide

[Luzi Thoeny]

This one is for Jani:

Right now, the desktopguide is installed in:
/usr/share/xubuntu-docs/desktopguide/xubuntu/desktopguide/C/

Shouldn't it be:
/usr/share/xubuntu-docs/xubuntu/desktopguide/C/

Ubuntu has:
//usr/share/ubuntu-docs/ubuntu/desktopguide/C /

Personally, I think this:
/usr/share/xubuntu-docs/desktopguide/C/
would be even 'cleaner'. But maybe I just don't understand the reasons...

~luzi