Implemented: FS#2427 - Allow wildcard subdomain creation on limit_wildcard = y 

- Fixed missing templates and language entries
- Previous subdomain mode can be used concurrently
- Changed log path to a more convenient location

FS#1993 - Creating Subdomains as VirtualHost

Fixed (partly) FS#2310 - Template switch not working in mailuser module, for dashlets and the login page

- Added "Generate Password" links to forms of the sites module.

- Fastcgi: delete .php-fcgi-starter directory if another PHP mode is used.

- Added PHP-FPM pm settings (pm.max_children, pm.start_servers, pm.min_spare_servers, pm.max_spare_servers) to the "Options" tab of a website.

Implemented: FS#1113 - Force client to use only allowed IPs

- Added SEO redirects (both Apache & nginx) to redirect from non-www website to www website or vice versa.
- Introduced placeholder [scheme] for redirect paths for alias and subdomains; will be replaced with http or https, depending on what the visitor uses.

- Fixed FS#1745.

- Added UFW firewall support.

Updated english languages files
Updated czech languages files

- Fixed a formatting problem with suphp.conf and newer suphp versions.

- Added a missing language string for the website form.

Additionally fixed a bug in web quota calculation.