- add voxpupuli-postfix module to Puppetfile
- create profiles::postfix::gateway class with config based on efa5
- add master.cf entries for postscreen, smtpd, dnsblog, and tlsproxy services
- create postfix hash files: aliases, access controls, canonical maps
- configure TLS with system PKI certificates and strong cipher suites
- add transport and virtual alias mappings for mail routing
- add autosyncer/autopromoter scripts
- add timer and service to initial sync process
- add timer/service for daily/weekly/monthly autopromote
- add define to manage each repo
- add nginx webserver to share repos
- add favion.ico if enabled
- add selinux management, and packages for selinux
- cleanup package management, sorting package groups into package classes
