[xmonad] XMonad is not playing well with floating windows

[Wirt Wolff]

Ugh, sorry for pressing send too soon. You'll need 'W.' for the
imports from StackSet:

shiftMaster = W.modify' $ \c -> case c of
    W.Stack _ [] _ -> c     -- already master.
    W.Stack t ls rs -> W.Stack t [] (reverse ls ++ rs)


--
wmw