[docs] Problem with Python 3 docs usability and Google search

[anatoly techtonik]

Manual pages for Python 3 docs have two usability issues.

1. Page contents is too huge, makes manual unreadable. Compare:
http://docs.python.org/3/reference/datamodel.html?highlight=__getattr__#customizing-attribute-access
and
http://docs.python.org/release/2.5.2/ref/attribute-access.html

2. Searching by Google also leads to the second page, which most
likely means that people still link to the old content, unable to find
the latest stuff
https://www.google.com/search?q=attribute+access+python

Please, CC.
--
anatoly t.