- Merged language files.

Fixed: FS#1777 - AWStats: In months with two digits (10, 11, 12) order is broken => 1,10,11,12,2,3...9

- Fixed a warning in apache plugin.

- Fixed bug in nginx plugin: folder protection got written to vhost even if no folder protection was configured.

- Replaced SSH-RSA input field with textarea so that you can put in multiple SSH-RSA keys.

- Make Apache/nginx restart after a site was deleted.
- Make sure the correct symlinks are deleted from the sites-enabled directory when a site is deleted (100-example.com.vhost, 900-example.com.vhost, or example.com.vhost).

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- Apps vhost: To access phpMyAdmin/SquirrelMail, the default user (like www-data on Debin/Ubuntu) must be used; fixes #1773.

Fixed: FS#1775 - PHP Fatal error: Call to a member function queryAllRecords() on a non-object in /usr/local/ispconfi

- Installer adds Apache and nginx user to ispapps group.
- Installer makes sure that /var/www/apps has 755 permissions.

- 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.

- Changed FastCGI buffers for ISPConfig nginx vhost because otherwise you get "upstream sent too big header while reading response header from upstream" on OpenSUSE.
- Added 502 error page ("Bad Gateway").
- Added "fastcgi_intercept_errors on;" to nginx vhost template so that ISPConfig's error pages are displayed instead of the default nginx ones.

- Installer adds ispconfig user to Apache group on Fedora/CentOS so that nginx/PHP-FPM can access /etc/squirrelmail and serve SquirrelMail for the ISPConfig vhost.
- Added session.save_path and upload_tmp_dir settings to the PHP-FPM pool definitions.

- Added "ipv6only=on" to the IPv6 listen lines in the nginx vhost template to avoid "[emerg]: bind() to [::]:80 failed (98: Address already in use)" errors.