[tor-relays] new Atlas feature: Not Recommended Tor Version

I'd like to highlight a new Atlas feature [1]: Atlas now displays a red "!" if the relay runs a tor version that is not recommended by the tor directory authorities. Examples https://atlas.torproject.org/#/top10 Thanks to RaBe and irl for adding this. [1] https://trac.torproject.org/projects/tor/ticket/21367