added missing lang-string top_menu_mailuser + changed umlaut code to utf8 c...

cfoe

2012-05-24 ec3d9abb92487aab666cab95d6f5b3d4e9d23dbb

 install/dist/lib/opensuse.lib.php

@@ -1084,9 +1084,8 @@
      }
      
      if(is_dir($install_dir.'/interface/invoices')) {
         chmod($install_dir.'/interface/invoices', 0770);
         chown($install_dir.'/interface/invoices', 'ispconfig');
         chgrp($install_dir.'/interface/invoices', 'ispconfig');
         exec('chmod -R 770 '.escapeshellarg($install_dir.'/interface/invoices'));
         exec('chown -R ispconfig:ispconfig '.escapeshellarg($install_dir.'/interface/invoices'));
      }