[Xmonad] patch: Magnifier: fix problems with floating windows

[Spencer Janssen]

On Sunday 05 August 2007 09:44:24 Peter De Wachter wrote:
> The Magnifier layout can't trust the StackSet focus field: floating
> windows are removed from that stack, so when a floating gets focus, a
> different, tiled window gets magnified. So use W.peek instead.

This will also interact better with multi-head, I think.

Applied.