[Xmonad] Add FloatLayout, a Layout Transformer adding a floating layer

[Spencer Janssen]

On Wednesday 10 October 2007 18:27:49 Karsten Schoelzel wrote:
> Hi,
>
> this is to try out moving the floating to the level of layouts.
> This would make it possible to have different layout algorithms for the
> floating layer, including different decorations for windows there.
>
> At the moment it's possible to move windows with the mouse and keys.
> Additionally there is a hidden layer so windows can be hidden
> temporarily (this being the initial reason to investigate it: hide all
> floating windows for a moment)
>
> TODO: - it's difficult to automagically move a window to the floating
>         layer with a manageHook
>       - moving windows between workspaces will *not* preserve the
>         floating status
>
> What do you think?

Let's postpone this until after 0.4.