Add Atom or RSS feed with latest experiment results

[denkv]

Description

As an administrator, a user or just a visitor of the platform, I would like to subscribe to the list of latest experiment results using open formats and tools.

Solution

• [ ] Add a Atom or RSS (or both) feed containing the latest experiment results.
• [ ] Add corresponding link to the HTML page metadata to browsers and other tools can discover the feed.
• [ ] Add a human-visible link to the feed on experiment results page.