Add 'Has improper value for' test which not causes an exception

'Has improper value for' is language dep. therefore use
$diPropertyError = new \SMWDIProperty( \SMWDIProperty::TYPE_ERROR );
$diPropertyError->getLabel() for the right property label output.

Change-Id: I426944d451f9b9133e5cd26989c517790a38f096
Merge "Add 'Has improper value for' test which not causes an exception"