fixed broken links for the latest pylint/astng release

[Sylvain Thénault]

Hi there,

last week I announced the latest and greatest pylint/astng release 
but didn't noticed at that time that the download links on our web site 
were broken, and that the upload to pypi failed.

This is now fixed, for those who tried during the mean time.

Sorry for the convenience,
-- 
Sylvain Thénault, LOGILAB, Paris (01.45.32.03.12) - Toulouse (05.62.17.16.42)
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