some links broken in 6.8.1 documentation

[Daniil Elovkov]

Hello folks

A quick look at the 6.8.1 user's guide reveals some broken links:

1)
Obtaining code coverage, pointing to
http://haskell.org/ghc/docs/6.8.1/html/users_guide/hpc.html

redirects to http://projects.unsafeperformio.com/hpc.html which tells
that it's not found but guesses at another location, where it is
found.

2)
Concurrent and parallel haskell
http://haskell.org/ghc/docs/6.8.1/html/users_guide/lang-parallel.html
(and possibly other pages)

have links to libraries according to the pre-base-split structure,
like .../base/.. instead of .../parallel/..., which results in those
links being broken.

Thank you

-- 
Daniil Elovkov