Clean up old certs

run.sh

 trap interrupt SIGINT
 
 while true; do
-  /letsencrypt.sh --cron --hook /lexicon.sh --challenge dns-01 
+  /letsencrypt.sh --cron --cleanup --hook /lexicon.sh --challenge dns-01
   inotifywait --timeout 86400 /letsencrypt/domains.txt
   sleep 60
 done