Fixed: FS#1900 - Check if the membership of the web user in the sshusers group affects pure-ftpd virtualchroot

=============
- Improved check for vhosts created with the remote API FS#1950
- Fixed: FS#1952 - Folders created by folder protection function belong to the root user
- Fixed website permission settings.
- Add option "set_folder_permissions_on_update" in server config to configure if folder permissions should be forced on web update.
- Fixed: FS#1934 - CentOS 6.1: cgi-bin: wrong folder permissions.
- Fixed: FS#1931 - Domain Rename Causes Vhost error.
- Fixed: FS#1831 - SSL Certificate setup fails unless you've visited the SSL tab in that session.
- Fixed a warning in nginx plugin.

Fixed: FS#1951 - dns: wrong named.conf.local generated with reverse dns delegation for small networks

Add option "set_folder_permissions_on_update" in server config to configure if folder permissions should be forced on web update.

- Set error reporting level in app inc.

- Select sieve template depending on dovecot version as doevceot 1.0 does not support the new date based autoresponders.
- Cleaned up opensuse dovecot-sql.conf file

- Fixed a problem with german umlauts in monitor.
- Added code to update.php and autoupdate.php that checks the mysql root password before the update starts.
- Fixed: FS#1848 - changing password of ssh user >>> rights in webXX are changed

Fixed: FS#1801 - german specialchars making trouble in logs

- 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).

No commit message

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