New Virtualmin LAMP/LEMP stack yum groups for CentOS and RHEL

Howdy all,

I've rolled out new yum groups for RHEL/CentOS.

Changes since the last version:

• Minimal stack has added dovecot and sasl dependencies
• Minimal stack has removed fail2ban dependency

This won't make any difference for existing systems, generally speaking, though it will install Dovecot and SASL if they aren't already installed. If you want to use them, you'll still need to configure them with virtualmin config-system --include Postfix SASL Dovecot.

Let me know if you run into any problems.

Cheers,

Joe