Merged revisions 72009 via svnmerge from

Merged revisions 72009 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r72009 | georg.brandl | 2009-04-27 17:29:09 +0200 (Mo, 27 Apr 2009) | 3 lines

  Demote warnings to notices where appropriate, following the goal that as few "red box" warnings
  should clutter the docs as possible.  Part 1: stuff that gets merged to Py3k.
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