[haskell-platform] #219: broken link to cabal documentation

[haskell-platform]

#219: broken link to cabal documentation
----------------------+-----------------------------------------------------
 Reporter:  Keith     |       Owner:  MtnViewMark
     Type:  defect    |      Status:  new        
 Priority:  major     |   Milestone:             
Component:  Web site  |    Keywords:             
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 From "haskell.org/platform", click "documentation", then "Cabal".

 "http://lambda.haskell.org/platform/doc/current/ghc-doc/Cabal/index.html"
 is not found.

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Ticket URL: <http://trac.haskell.org/haskell-platform/ticket/219>
haskell-platform <http://trac.haskell.org/haskell-platform>
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