xfwm: support for 2d pagers

[Paramjit Oberoi]

> >>Not necessarily. Arguably "wrap layout" could be overloaded to mean: 
> >>Stop at the first/last workspace. I heard someone saying, he just helds 
> >There is existing option to control that: wrap_workspaces
>
> From reading the code I think it only controls wrapping when dragging 
> windows across the screen border, and it uses the wrap_layout to decide 
> if to move a window to workspace 0 if dragged out of the left side of 
> the last workspace. Or did I misinterprete the code?

I realised I was confused about what the various wrap_* settings do.
What I said about wrap_workspaces in my previous email was incorrect.
I really need to think more before pressing 'send'.

You were right about wrap_layout being the setting that should control
the behavior in question.

-param