Feature Request: Show about.html as a tooltip

[ErikKoppenhagen]

At the current point of time, the description and the about.html of a bundle/feature/product are shown at the same place. The about.html is shown as plain text instead of html.

Could you please remove the about.html from the description are and add it as an html tooltip?

[NiklasRentzCAU]

For that, the model and model generator needs to be changed first to include those descriptions as plain strings or html files. Blocked by #10.