Fixed/Implemented: replaced intval() by $app->functions->intval() in all interface functions due to big number problem in intval()

- Implemented session message system (template modifications pending)
- Updated ISPC SVN version number to 3.0.5

Fixed: password match function blocked tabs incorrectly
Fixed: set focus on username input field threw an error if this field did not exist on a page

- Added interface plugins for db and db users
- changed remoting (splitted up insert, update and deletequery)

Fixed: PHP notice in tform_actions.inc.php

- Added UFW firewall support.

- Added alternative code for a is_group function which might perform better then the old implementation. It has to be tested yet and is commented out.

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

- FS#501 - disable shell account untill jailkit is finished 

added missing dots in dns template examples and added a function which adds the dots automatically when missing.

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

- Clients that are not resellers can not change the basic web settings anymore.

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

- Fixed several bugs.

- improved several functions in site module
- added server classes to restart services

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