NEW: rspamd

NEW: postsrsd, create new envelope for forwarded mail
NEW: apnscp_update_policy, yum_update_policy: control panel/OS updates (apnscp-vars.yml)
FIX: alias expansion (mail/configure-postfix)
FIX: virtual_mailbox_limit less than $message_size_limit (mail/configure-postfix)
FIX: pass HOME when running Bootstrapper as background job (mysql/install)
FIX: /etc/sudoers inherited from system default (apnscp/initialize-filesystem-template)
FIX: add MariaDB startup timeout for large InnoDB pools which could result in a cyclic restart on large servers (mysql/install)
CHG: preserve maildrop templates (mail/maildir)
CHG: Configuration tweaks- constrain Redis memory. Normal worker on UNIX socket. Enable reputation module. Reclassify autolearn within [-2.5, 7.5] threshold. Disable normal worker in low memory environments (rspamd)
CHG: always use X-Spam-Score header (mail/rspamd)
CHG: swap localmaildrop service with mailbox_transport (mail/configure-postfix)
CHG: cleanup (mail/rspamd)
CHG: smtpd_relay_restrictions separate subset of smtps_recipient_restrictions as of 2.10 (mail/configure-postfix)
CHG: move to GitLab
REM: --extra-vars save. Use "cpcmd config_set apnscp.bootstrapper var val" to permanently alter Bootstrapper parameters (common/update-config)