TilePrime.hs: Give a description that distinguishs between horizontal/vertical
TilePrime.hs: Give a description that distinguishs between horizontal/vertical

darcs-hash:20071018063749-b49f3-3cce3ff7340fdced2f0c27264ac1df0effa6b627

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