mkcert.sh: Use umask to create key file as 0600 Fixes a race condition between creation of the file and a later chmod. This script was mostly meant as an example though, and not really for production use. Especially because it generates self-signed certs. CVE-2016-4983

If cert/key directories don't exist, exit immediately instead of just priting the errors. --HG-- branch : HEAD

Make certificate valid for one year --HG-- branch : HEAD

write dovecot.pem, not imapd.pem files. --HG-- branch : HEAD

Quotes around echo --HG-- branch : HEAD

comment update --HG-- branch : HEAD

Subject printing used wrong certificate file. --HG-- branch : HEAD

Name the cert and key files as "imapd.pem" after all like they're in config file. I'm not sure what's the standard naming in /etc/ssl though. --HG-- branch : HEAD

Added script to easily generate self-signed certificate. --HG-- branch : HEAD