Corrected commit for: FS#3478 - Postfix smtpd_recipient_restrictions are ordered incorrectly in default template

Removed backup_dir_mount_cmd option from Sysstem > server config. The option has been replaced by a script /usr/local/ispconfig/server/scripts/backup_dir_mount.sh. If this script exists, is exacutable and is owned by the root user, then it will be executed upfront of the backup jobs when the option "Backup directory is a mount?" is enabled in server config settings.

Revert "Fixed: FS#3581 - Website unaccessible under some circumstances when using seo redirection *.domain to www.domain"

This reverts commit 5742e4c9.

Fixed: FS#3581 - Website unaccessible under some circumstances when using seo redirection *.domain to www.domain
(only for apache2, nginx still to do)

this also fixes a problem with ignored vhost subdomains on validation

- Changed vhost.conf.master as php-fpm was not working after commit "5a6670bd".

Fixed: db user not created in mysql user table if password is stored in cleartext (ISPConfig < 3.0.3.3)
Fixed: db user not created on update if status not changed (e. g. on using resync tool)

- adjusted PHP settings regex to allow |, (, and ) (like in "error_reporting = E_ALL & ~(E_NOTICE | E_DEPRECATED | E_STRICT)")