Also document the use of three-tuples if control of the charset
and language is desired.

The work on this is not 100% complete, but everything is present to
allow real-world testing of the code.  The only remaining major todo
item is to (hopefully!) enhance the handling of non-ASCII bytes in headers
converted to unicode by RFC2047 encoding them rather than replacing them with
'?'s.

svn+ssh://pythondev@svn.python.org/python/trunk

........
  r78656 | r.david.murray | 2010-03-04 12:34:05 -0500 (Thu, 04 Mar 2010) | 3 lines

  Fix documentation of email.Message.get_filename to match
  the fix applied in Issue 7082.
........

svn+ssh://pythondev@svn.python.org/python/trunk

........
  r77412 | r.david.murray | 2010-01-10 12:41:28 -0500 (Sun, 10 Jan 2010) | 3 lines

  Issue #7119: document that a program-generated Message object
  tree may be mutated when serialized.
........

svn+ssh://pythondev@svn.python.org/python/trunk

........
  r71572 | georg.brandl | 2009-04-13 15:13:25 +0200 (Mo, 13 Apr 2009) | 1 line

  #5745: more linking for identifiers in email docs.
........

svn+ssh://pythondev@svn.python.org/python/trunk

........
  r71544 | benjamin.peterson | 2009-04-13 01:19:56 +0200 (Mo, 13 Apr 2009) | 1 line

  fix extra parenthesis #5774
........
  r71546 | benjamin.peterson | 2009-04-13 01:44:15 +0200 (Mo, 13 Apr 2009) | 1 line

  fix missing quote
........
  r71554 | hirokazu.yamamoto | 2009-04-13 03:07:06 +0200 (Mo, 13 Apr 2009) | 1 line

  Fixed typo. (email.Utils => email.utils)
........
  r71555 | hirokazu.yamamoto | 2009-04-13 03:21:56 +0200 (Mo, 13 Apr 2009) | 1 line

  Fixed another typos. (email.Utils => email.utils)
........

svn+ssh://pythondev@svn.python.org/python/trunk

........
  r65209 | raymond.hettinger | 2008-07-23 19:08:18 -0500 (Wed, 23 Jul 2008) | 1 line

  Finish-up the partial conversion from int to Py_ssize_t for deque indices and length.
........
  r65210 | raymond.hettinger | 2008-07-23 19:53:49 -0500 (Wed, 23 Jul 2008) | 1 line

  Parse to the correct datatype.
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  r65211 | benjamin.peterson | 2008-07-23 21:27:46 -0500 (Wed, 23 Jul 2008) | 1 line

  fix spacing
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  r65212 | benjamin.peterson | 2008-07-23 21:31:28 -0500 (Wed, 23 Jul 2008) | 1 line

  fix markup
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  r65213 | benjamin.peterson | 2008-07-23 21:45:37 -0500 (Wed, 23 Jul 2008) | 1 line

  add some documentation for 2to3
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  r65214 | raymond.hettinger | 2008-07-24 00:38:48 -0500 (Thu, 24 Jul 2008) | 1 line

  Finish conversion from int to Py_ssize_t.
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  r65215 | raymond.hettinger | 2008-07-24 02:04:55 -0500 (Thu, 24 Jul 2008) | 1 line

  Convert from long to Py_ssize_t.
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  r65216 | georg.brandl | 2008-07-24 02:09:21 -0500 (Thu, 24 Jul 2008) | 2 lines

  Fix indentation.
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  r65225 | benjamin.peterson | 2008-07-25 11:55:37 -0500 (Fri, 25 Jul 2008) | 1 line

  teach .bzrignore about doc tools
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  r65226 | benjamin.peterson | 2008-07-25 12:02:11 -0500 (Fri, 25 Jul 2008) | 1 line

  document default value for fillvalue
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  r65233 | raymond.hettinger | 2008-07-25 13:43:33 -0500 (Fri, 25 Jul 2008) | 1 line

  Issue 1592:  Better error reporting for operations on closed shelves.
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  r65239 | benjamin.peterson | 2008-07-25 16:59:53 -0500 (Fri, 25 Jul 2008) | 1 line

  fix indentation
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  r65246 | andrew.kuchling | 2008-07-26 08:08:19 -0500 (Sat, 26 Jul 2008) | 1 line

  This sentence continues to bug me; rewrite it for the second time
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  r65247 | andrew.kuchling | 2008-07-26 08:09:06 -0500 (Sat, 26 Jul 2008) | 1 line

  Remove extra words
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  r65255 | skip.montanaro | 2008-07-26 19:49:02 -0500 (Sat, 26 Jul 2008) | 3 lines

  Close issue 3437 - missing state change when Allow lines are processed.
  Adds test cases which use Allow: as well.
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  r65256 | skip.montanaro | 2008-07-26 19:50:41 -0500 (Sat, 26 Jul 2008) | 2 lines

  note robotparser bug fix.
........