Reverter.py: clock change protection, and debugging for #1243
Reverter.py: clock change protection, and debugging for #1243

letsencrypt/letsencrypt,stweil/letsencrypt,letsencrypt/letsencrypt,wteiken/letsencrypt,dietsche/letsencrypt,brentdax/letsencrypt,bsmr-misc-forks/letsencrypt,jtl999/certbot,jsha/letsencrypt,wteiken/letsencrypt,DavidGarciaCat/letsencrypt,dietsche/letsencrypt,lmcro/letsencrypt,jsha/letsencrypt,brentdax/letsencrypt,jtl999/certbot,stweil/letsencrypt,DavidGarciaCat/letsencrypt,bsmr-misc-forks/letsencrypt,lmcro/letsencrypt