integer types T, not just those for which "unsigned T" is legal.

Backport of r70459.

* Re-order methods so that those touching the underlying data
  structure come first and the derived methods come last.

* Add optional argument to popitem() -- modeled
  after Anthon van der Neut's C version.
* Fix method markup in docs.

for O(1) deletions.  Big-Oh performance now the same as regular
dictionaries.  Uses a doubly-linked list instead of a list/seq
to track insertion order.

sizeof(Py_UNICODE) == 2, PyUnicode_FromWideChar now converts
each character outside the BMP to the appropriate surrogate pair.

Thanks Victor Stinner for the patch.

(backport of r70452 from py3k to trunk)

If you use http://svn.python.org/projects/external/openssl-0.9.8g, Perl is not needed.
This scheme was ported from PCBuild.

added for 'n' formats with non-repeating thousands-separator.

to Decimal __format__ method.

alignment.

This is cleaner and avoids lockups in obscure cases where a Queue
is instantiated while the import lock is already held by another thread.

OKed by Tim Peters.

the recommendation to send suggestions to the author can be followed.

Fix a small nit in the error message if bool() falls back on __len__ and it returns the wrong type: it would tell the user that __nonzero__ should return bool or int.

Unicode format tests weren't actually testing unicode. This was probably due to the original backport from py3k.

For simple uses for str.format(), this makes the typing easier. Hopfully this
will help in the adoption of str.format().

For example:
'The {} is {}'.format('sky', 'blue')

You can mix and matcth auto-numbering and named replacement fields:
'The {} is {color}'.format('sky', color='blue')

But you can't mix and match auto-numbering and specified numbering:
'The {0} is {}'.format('sky', 'blue')
ValueError: cannot switch from manual field specification to automatic field numbering

Will port to 3.1.