Support for LetsEncrypt

This should be an easy addition as LetsEncrypt is fully documented and now GA. LetsEncrypt allows for free SSL certificates that are automatically renewed with zero administration. DigiCert backs the Root CA so LetsEncrypt certs are trusted everywhere. The hostname used for LetsEncrypt could simply be the hostname of the XG firewall. Implementation of this would allow the admin & user portals to have publicly trusted certificates automatically. Security made simple, right?