Add new users to usergroup

Change-Id: I94a495ec4e1ee52f16de7632a6334e2fdaec7e0d
Reviewed-by: Andras Becsi <andras.becsi@digia.com>
Reviewed-by: Harri Eronen <harri.eronen@digia.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>