Router timestamper:

 - Add country-to-continent mapping
 - Add continent pool.ntp.org zones as first fallback,
   this will improve time service for countries that don't have a zone
 - Don't start threads in constructors
 - Fix logging, better prevention of initialization loops
 - Log severe errors to wrapper log also
continent.txt file from http://dev.maxmind.com/geoip/legacy/codes/country_continent/
Creative Commons Attribution-ShareAlike 3.0 Unported License
http://dev.maxmind.com/geoip/legacy/geolite/
Terms already met in LICENSE.txt