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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