Merged revisions 80465-80470 via svnmerge from

Merged revisions 80465-80470 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r80465 | georg.brandl | 2010-04-25 12:29:17 +0200 (So, 25 Apr 2010) | 1 line

  Remove LaTeXy index entry syntax.
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  r80466 | georg.brandl | 2010-04-25 12:54:42 +0200 (So, 25 Apr 2010) | 1 line

  Patch from Tim Hatch: Better cross-referencing in socket and winreg docs.
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  r80467 | georg.brandl | 2010-04-25 12:55:16 +0200 (So, 25 Apr 2010) | 1 line

  Patch from Tim Hatch: Remove reference to winreg being the fabled high-level registry interface.
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  r80468 | georg.brandl | 2010-04-25 12:55:58 +0200 (So, 25 Apr 2010) | 1 line

  Patch from Tim Hatch: Minor spelling changes to _winreg docs.
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  r80469 | georg.brandl | 2010-04-25 12:56:41 +0200 (So, 25 Apr 2010) | 1 line

  Fix code example to have valid syntax so that it can be highlighted.
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  r80470 | georg.brandl | 2010-04-25 12:57:15 +0200 (So, 25 Apr 2010) | 1 line

  Patch from Tim Hatch: Make socket setblocking <-> settimeout examples symmetric.
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