patch applied (cabal-install): always check environment variables for HTTP proxy first

Tue Feb 10 15:07:36 PST 2009 Ganesh Sittampalam <ganesh.sittampalam@credit-suisse.com> * always check environment variables for HTTP proxy first M ./Distribution/Client/HttpUtils.hs -7 +11 View patch online: http://darcs.haskell.org/cabal-install/_darcs/patches/20090210230736-e69a7-f...