New web server on the NTP Pool site

Today the NTP Pool site was upgraded to run on Plack and Starman instead of Apache.

Please let me know if you encounter any trouble!

This was a bit of work to get done and with this done I’ll get back to adding new features to the system. First up: Integrating some of the contributed translations and finishing the changes to support distributed monitoring and IPv6 support that Martin von Löwis started a while back.