make LayoutHints work with new modifyLayout (in X).
make LayoutHints work with new modifyLayout (in X).

darcs-hash:20070610145740-72aca-317bb936ec8831f0d168bd461e7c834ac4e5bf1f

yzhou61/xmonad-contrib,yzhou61/xmonad-contrib,yzhou61/xmonad-contrib