patch applied (packages/Cabal): Add a fold function for the VersionRange

[Ian Lynagh]

Tue Dec  2 05:58:45 PST 2008  Duncan Coutts <duncan at haskell.org>
  * Add a fold function for the VersionRange
  Use it to simplify the eval / withinRange function

    M ./Distribution/Version.hs -17 +37

View patch online:
http://darcs.haskell.org/packages/Cabal/_darcs/patches/20081202135845-adfee-eab762590ab7e56cc1c88c25c5f11611a150349f.gz