Merged revisions 71814-71817,71901-71903 via svnmerge from

Merged revisions 71814-71817,71901-71903 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r71814 | georg.brandl | 2009-04-23 10:44:57 +0200 (Do, 23 Apr 2009) | 1 line

  #5820: fix bug in usage of getreader().
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  r71815 | georg.brandl | 2009-04-23 10:49:39 +0200 (Do, 23 Apr 2009) | 1 line

  Fix rewrapping accident.
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  r71816 | georg.brandl | 2009-04-23 10:49:56 +0200 (Do, 23 Apr 2009) | 1 line

  #5813: add a reference to the "future statements" section.
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  r71817 | georg.brandl | 2009-04-23 10:52:03 +0200 (Do, 23 Apr 2009) | 1 line

  Add link to PEP 236.
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  r71901 | georg.brandl | 2009-04-25 16:50:25 +0200 (Sa, 25 Apr 2009) | 1 line

  #3320: fix spelling.
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  r71902 | georg.brandl | 2009-04-25 16:51:31 +0200 (Sa, 25 Apr 2009) | 1 line

  #5834: use "failure" instead of "error" because the two have different meanings in unittest context.
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  r71903 | georg.brandl | 2009-04-25 17:05:04 +0200 (Sa, 25 Apr 2009) | 1 line

  #5821: add some capabilities of TarFile's file-like object.
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