patch applied (cabal-install): Update world file entries ignoring version constraints

Sun May 9 20:24:57 PDT 2010 Duncan Coutts * Update world file entries ignoring version constraints Otherwise it is easy to add impossible constraints to the world file. cabal install 'foo > 1' && cabal install 'foo < 1' Would give us a world file with both constraints. M ./Distribution/Client/World.hs -5 +5 View patch online: http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=cabal-install;a=darcs_commit...