Merged revisions 74232 via svnmerge from

Merged revisions 74232 via svnmerge from
svn+ssh://pythondev@www.python.org/python/branches/py3k

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  r74232 | mark.dickinson | 2009-07-28 17:31:03 +0100 (Tue, 28 Jul 2009) | 15 lines

  Merged revisions 74184,74230 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

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    r74184 | georg.brandl | 2009-07-23 08:08:58 +0100 (Thu, 23 Jul 2009) | 1 line

    #6548: dont suggest existence of real and imag functions in cmath.
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    r74230 | mark.dickinson | 2009-07-28 17:12:40 +0100 (Tue, 28 Jul 2009) | 4 lines

    Issue #6458: Reorganize cmath documentation into sections (similar to
    the way that the math documentation is organized); clarify section on
    conversions to and from polar coordinates.
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