[xmonad] darcs patch: Add ifWindow and ifWindows and simplify WindowGo

[Adam Vogt]

* On Thursday, June 25 2009, Daniel Schoepe wrote:


Content-Description: darcs patch for xmonad-contrib
>Thu Jun 25 01:17:11 CEST 2009  Daniel Schoepe <daniel.schoepe at gmail.com>
>  * Add ifWindow and ifWindows and simplify WindowGo
>  
>  This patch adds ifWindow and ifWindows as helper functions to
>  X.A.WindowGo and removes some boilerplate by rewriting other functions
>  in terms of those. Also some minor simplifications.

Applied, thanks.