XMonad.Layout.HintedGrid: add GridRatio (--no-test because of haddock breakage)
XMonad.Layout.HintedGrid: add GridRatio (--no-test because of haddock breakage)

darcs-hash:20080930141715-462cf-79a7ea8fc204d24b9cca37ab59ae71933d0d75b0

jthornber/XMonadContrib,jthornber/XMonadContrib