Wiki update

Hello,

yesterday, I updated the primary IPFire web server and the wiki software as well. I am sure some of you have already noticed, that it looks quite different.

I won't reinstall the old theme, because it does not work with the old version. And instead of downgrading to the old version of the wiki I prefer the one in which all security problems are fixed.

If there is anyone who would like to have a go and port the new layout to the wiki, go ahead!

Despite the theme, I did not re-install all plugins. Most of them were redundant and so there is mainly the wrap plugin for formatting: https://www.dokuwiki.org/plugin:wrap

Maybe some fixes are required, because the long-time obsolete commands were still used.

-Michael