[Hackage] #361: Add documentation location information to cabal list package command

[Hackage]

#361: Add documentation location information to cabal list package command
----------------------------+-----------------------------------------------
  Reporter:  guest          |        Owner:         
      Type:  enhancement    |       Status:  new    
  Priority:  normal         |    Milestone:         
 Component:  Cabal library  |      Version:  1.2.3.0
  Severity:  normal         |     Keywords:         
Difficulty:  normal         |   Ghcversion:  6.8.2  
  Platform:                 |  
----------------------------+-----------------------------------------------
 It would be useful for the cabal list package command to return
 information about whether the documentation for the package is installed,
 and if so, where it might be found.

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Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/361>
Hackage <http://haskell.org/cabal/>
Hackage: Cabal and related projects