cleanup and make X.L.Mosaic behavior more intuitive wrt. areas
cleanup and make X.L.Mosaic behavior more intuitive wrt. areas

Ignore-this: 3c3c6faa203cbb1c1db909e5bf018b6f

darcs-hash:20090208221629-1499c-71d8686ea82e5d8fe4fc93a81aa60f1d9369dc3f

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