Removed unsupported setting in vhost config file and added german translation of welcome email message.

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Replaced old variable names with new ones used in apache 2, see here for reference: http://httpd.apache.org/mod_fcgid/mod/mod_fcgid.html

Temporary fix for: FS#1311 - Only first PHPINIDir directive honored per configuration tree - subsequent ones ignored 

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

Merged revisions 1832-1836 from stable (added dovecot support for debian squeeze and added a new distid and class for debian6 specific modifications.

Fixed: FS#1047 - php scripts with suexec do not work togetherv with redirects (proposed solution included)

Added a global default for the .htaccess allow_override setting.

Fixed a bug that prevented the modification of website settings of a site that the user created.

- Made jailkit programs configurable per linux distribution in the installer.