- Do not let the `notify.sh` script start PHP-FPM if config exists; instead, have a separate supervisor process do it; this allows child packages to disable `notify.sh` without removing the autostart of PHP-FPM
- PHP-FPM's readiness to start is now indicated by presence of ".ready" file in the pool.d directory, as well as checking for existence of at least one file with "*.conf" suffix
- Allow configuring mail client's certificates separately for authentication from mail server's CA certificate for server verification; this allows not to use client authentication and enable or disable server verification