Bump version to 0.8.2

cabal-install.cabal

 Name:               cabal-install
-Version:            0.8.1
+Version:            0.8.2
 Synopsis:           The command-line interface for Cabal and Hackage.
 Description:
     The \'cabal\' command-line program simplifies the process of managing
@@ -33,7 +33,7 @@ source-repository head
 source-repository this
   type:     darcs
   location: http://darcs.haskell.org/cabal-branches/cabal-install-0.8/
-  tag: 0.8.0
+  tag: 0.8.2
 
 flag old-base
   description: Old, monolithic base