X.H.ManageHelpers: add two new helper functions, doFloatDep and doFloatAt
X.H.ManageHelpers: add two new helper functions, doFloatDep and doFloatAt

darcs-hash:20090605030113-1e371-6f55d154e061c7fcfe3ad68a11162f7cb655d48d

jthornber/XMonadContrib,jthornber/XMonadContrib