Merged serveral bugfixes and new language files from stable branch (revisio...

tbrehm

2010-10-22 fb3a98c0f06fb14a188e5a020936768fa04cb205

 server/lib/classes/system.inc.php

@@ -1191,6 +1191,8 @@
      } else {
         $dir = escapeshellcmd($maildir_path);
      }
		
      if(!is_dir($dir)) mkdir($dir, 0700, true);

      if($user != '' && $user != 'root' && $this->is_user($user)) {
         $user = escapeshellcmd($user);