When converting REG_DWORD registry values into Python ints, the conversion
needs to be made from an *unsigned* long to match the DWORD type.

This fixes an OverflowError seen in winreg.SetValueEx when passed
winreg.REG_DWORD values that should be supported by the underlying API.

Fixes handling of leading dots.

Patch by Serhiy Storchaka.

This fixes the following warning when building the docs (probably from
the commit for issue #14901):

"/Doc/faq/windows.rst:138: WARNING: undefined label: setting-envvars (if the
link has no caption the label must precede a section header)"

This adds to the work done for issue #15990 (i.e. f44b8d69e5fc and the
commits referenced there).

Patch Serhiy Storchaka.

Patch by Anton Kasyanov.

Fix Issue15701 - HTTPError info method call raises AttributeError. Fix that to return headers correctly

Patch by Serhiy Storchaka.

Thanks to Inada Naoki

Patch by Serhiy Storchaka.

Fix issue #16646: ftplib.FTP.makeport() might lose socket error details.  (patch by Serhiy Storchaka)

Patch by Ashish Nitin Patil.

Issue #16626: Fix infinite recursion in glob.glob() on Windows when the pattern contains a wildcard in the drive or UNC path.
Patch by Serhiy Storchaka.

Patch by Sebastian Kreft.

Issue #16298: In HTTPResponse.read(), close the socket when there is no Content-Length and the incoming stream is finished.
Patch by Eran Rundstein.