Fixed #7748: now upload and register commands don't need to force the encoding anymore : DistributionMetada returns utf8 strings

dtoa.c fix from upstream that fixes incorrectly rounded results for certain subnormals that are also halfway cases.

this fixes the first bug described in issue #7743.

Increased the overflow value on test_dealloc to make sure that it is big enough even for wide builds.

in issue 7743).

This should fix the failure introduced in r77680. The error message is now different and it caused the test to fail. The failing test is not present in 2.5 so it is failing only on 2.6 and newer versions.

  (CVE_2009_3560).

and exit points.  2. Simplify bigcomp comparison loop.  3. Don't set
ERANGE on _Py_dg_strtod underflow (it was set inconsistently anyway).
4. Remove unused dsign field from BCinfo struct.

module when the openssl version is too old to support them.  That
leads both compiled code bloat and to unittests attempting to test
implementations that don't exist for comparison purposes on such
platforms.

 http://www.python.org/dev/buildbot/all/builders/x86%20gentoo%20trunk/builds/5700/

Will be removed shortly.

Adjust documentation and add a test to verify this behavior.

See http://mail.python.org/pipermail/python-dev/2010-January/095637.html for
discussion.