[Python-3000] Support for PEP 3131

[Stephen J. Turnbull]

Josiah Carlson writes:

 > And as stated by basically everyone, the only *sane* default is ascii
 > identifiers.

That's a misrepresentation.  I prefer the full range of PEP 3131 as
the default for use by consenting adults.  But you should have the
right to unilaterally refuse to grant that consent, yet still enjoy
the benefits of the rest of Python.