Improved API behaviour: The $params array must contain only the new values and not all values of a record on update. Setting all values does not hurt though, so the change is downwards compatible with older versions.

- Add option to _get functions of the remote-api to return all records when primaryID = -1
- Fixed permission problem in _get functions of remote api.
- Fixed typo in german dashboard language file.

- Fixed: nginx placeholders could not be added to directive snippets textarea by clicking on the link.

Fixed regex in prefix validation under System > interface config that prevented numbers in prefixes.

(nginx still missing)

Fixed: FS#3456 - Dashboard Style still broken after Update to 3.0.5 // Patch 3053_dashboard does not work

- Added missing option in centos dovecot.conf file