Patch by pankaj.s01.

Original patch by Saimadhav Heblikar.

Patch by Brian Cain.

The old project files move to PC/VS9.0 and remain supported.

VS2008 is still required to build 2.7; VS2010 (or later, plus Windows SDK 7.1)
is *also* required to use the new project files.

Backport of bcf93e3766e8.

without mknod() or makedev() (e.g. on Unixware).

on OS X.  Original patch by André Freitas.

positives with the -flto option (gcc >= 4.9.0 and clang).

object now always allocates place for trailing null byte and it's buffer now
is always null-terminated.

functions of the audioop module.  Fixed SystemError when the state is not a
tuple.  Fixed possible memory leak.

gzip.open() supports context management protocol in Python 2, so it's better to
use it in the examples section.

Patch by Jakub Kadlčík.