[Kde-bindings] Containers passed by reference

[David Palacio]

>* When an overriden virtual method with a non-const QVector/QList argument
>  was called, such as Generator.openDocument() in Okular, the Ruby values
>  in the Ruby Array were not being converted back to the values in the
>  C++ list after the method call.
With the latest commit it is not fixed for me. It never enters the new 
conditional block. Did the script work for you?