[docs] Recent site redesign broke links to old doc versions

[Walter Goulet]

Hi,

The links to older documentation through www.python.org are broken;
http://www.python.org/doc/2.5.1/ returns 404. You can still get to the
old versions via docs.python.org, but since the new front page is the
main landing point I think that the links should be fixed there.

Thanks!
Walter