patch applied (cabal-install): Add initial internal support for more kinds of available package

[Duncan Coutts]

Mon May 10 20:09:41 PDT 2010  Duncan Coutts <duncan at haskell.org>
  * Add initial internal support for more kinds of available package
  Previously only named packages from a remote package archive, or
  the unpacked package in the current directory. Now also add unpacked
  packages in particular directories, local tarballs and remote tarballs. 
  No support in the user interface or dep planning yet.

    M ./Distribution/Client/Configure.hs -2 +2
    M ./Distribution/Client/Fetch.hs -1 +3
    M ./Distribution/Client/Install.hs -19 +50
    M ./Distribution/Client/Types.hs -4 +8
    M ./Distribution/Client/Unpack.hs -13 +32

View patch online:
http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=cabal-install;a=darcs_commitdiff;h=20100511030941-adfee-4b0c82564dd19afd5a551431dc1836cf8c241bbc.gz