Cleanup und redesign of www.d.o

1. What is the status of the current webpages on www.d.o?

* A lot of the page are quite outdated.
* The pages are quite heavily based on text only content.

2. What to do on certian webpages?

There are pages that are focused mainly for contributors and devolopers,
should they stay on the official website?

3. What is the target audience we want to get on www.d.o?