universal builds that are presented by the configure script.

Patch by Virgil Dupras.

#4759: allow None as first argument of bytearray.translate(), for consistency with bytes.translate().

Also fix segfault for bytearray.translate(x, None) -- will backport this part to 3.0 and 2.6.

those who (monkey-)patch TextWrapper.wordsep_re with a custom RE.

so that ``help('@')`` works as expected.

Patch by Gabriel Genellina.

Update outdated copy of PyUnicode_EncodeRawUnicodeEscape.
Add a test case.

Make the _PyUnicode_Resize macro a static function.

These changes are needed to avoid breaking strict aliasing rules.

(There is no behavior difference in 2.x because HIGHEST_PROTOCOL == 2)