make add_domain more useful
make add_domain more useful

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