patch applied (cabal-install): Insert a separate fetch stage to the install process

[Duncan Coutts]

Sun Feb 13 12:08:24 PST 2011  Duncan Coutts <duncan at community.haskell.org>
  * Insert a separate fetch stage to the install process
  Helps to clarify things now that different kinds of packages
  are fetched in different ways.

    M ./Distribution/Client/FetchUtils.hs +22
    M ./Distribution/Client/Install.hs -50 +46

View patch online:
http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=cabal-install;a=darcs_commitdiff;h=20110213200824-5c91e-2f7e34ea90e2d260174f15b33e4753f0682d8266.gz