Implemented: FS#1252 - Add permission system based on user / password to app installer 

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

Show warning message someone tries to use root as username for a client database when the database prefixes are removed.

Impoved the software update function to enable the installation of apps like phpmyadmin into the apps vhost.

- Fixed a problem with the automatic creation of maildir subfolders.

- added installation instructions for opensuse 11.2 with bind and dovecot
- fixed a bug in bind plugin.
- improved opensuse installer.

Added a global default for the .htaccess allow_override setting.

Temporarily disabled the automatic activation of the bind-dlz plugin until a routine is integrated in the installer to detect if bind has dlz compiled in or the normal file based plugin has to be used.

Added Support for Sieve mail filtering language on dovecot servers.

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