Added the configuration variable $conf['demo_mode'] in the config.inc.php file. It disables the newly introduced demo mode which limits certain actions in the interface part of ispconfig: the demo mode can be used to run the ispconfig interface part as online demo.

Data records are now assigned to the correct client group if they were created by the administrator.

- Added a form to change the language and password of the current user.

- Changed shell of website linux user to /bin/false

- Fixed a bug were DNS SOA records could not be deleted.