Merged revisions 78757-78758,78769,78815 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r78757 | florent.xicluna | 2010-03-07 13:14:25 +0100 (dim, 07 mar 2010) | 2 lines

  Fix some py3k warnings in the standard library.
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  r78758 | florent.xicluna | 2010-03-07 13:18:33 +0100 (dim, 07 mar 2010) | 4 lines

  Issue #7849: Now the utility ``check_warnings`` verifies if the warnings are
  effectively raised.  A new utility ``check_py3k_warnings`` deals with py3k warnings.
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  r78769 | florent.xicluna | 2010-03-07 20:14:12 +0100 (dim, 07 mar 2010) | 2 lines

  Refresh the documentation for the test.test_support module.
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  r78815 | florent.xicluna | 2010-03-09 20:57:01 +0100 (mar, 09 mar 2010) | 2 lines

  #7772: Fix test_py3kwarn. Now the test suite could pass with "-3" flag.
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