X.L.MultiColumns NWin shrinkning fix
X.L.MultiColumns NWin shrinkning fix

Ignore-this: 9ba40ee14ec12c3885173817eac2b564
Fixed a bug where the list containing the number of windows in each column was allowed the shrink if a column was unused.

darcs-hash:20091027005932-8978f-8955b49d4c7440a0fb8866efc82ef707cca761ec

jthornber/XMonadContrib,jthornber/XMonadContrib