- nginx: do a syntax check because on some distributions, the init script always returns 0 - even if the syntax is not ok (how stupid is that?)

Changed web folder permissions in nginx setups from 711 to 751 to avoid (false) permissions warnings in log files.

Fixed: FS#3456 - Dashboard Style still broken after Update to 3.0.5 // Patch 3053_dashboard does not work

Fixed: FS#3440 - after each install/reconfigure: warning: database /var/lib/mailman/data/virtual-mailman.db is older

- Added missing option in centos dovecot.conf file

- Enable php-fpm socket mode as default.

- changed/harmonized order of clients in client select fields ("ORDER BY client.company_name, client.contact_name, sys_group.name")