* Close sockets and streams to fix ResourceWarning warnings
* Catch also OSError to hide a traceback on an expected handshake
  error

Document that the default value of repeat changed from 3 to 5 in
Python 3.7.

Substract one because listdir() opens internally a file
descriptor to list the content of the /proc/self/fd/ directory.

Add test_support.test_fd_count().

Move also MAXFD code before msvcrt.CrtSetReportMode(), to make sure
that the report mode is always restored on failure.

Move the floor() call into fbound() to call floor() on a double
rather than an int. The change should enhance the rounding.

Document also (int)double rounding mode.

an => and

The bug has been fixed 10 months ago:

* https://svnweb.freebsd.org/base?view=revision&revision=321920
* https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=221048

With 3.7+, dictionary are ordered by design.  Configparser still uses
collections.OrderedDict, which is unnecessary.  This updates the module
to use the standard dict implementation by default, and changes the
docs and tests to match.

It wasn't testing functionality.  Now it is (on Linux anyways).

* Document tokenize.generate_tokens()

* Add news file

* Add test for generate_tokens

* Document behaviour around ENCODING token

* Add generate_tokens to __all__

testModeStrings and testTruncateOnWindows were depended on
a file leaked in other tests.

Also improve cleaning up after tests.

With addCleanup() f.close() was executed after tearDown().

In addition to that, mark SSLTransport as "closed" in its "abort()" method to prevent bogus warnings.

Raise TypeError instead of SystemError for unsupported operations.

Previously, the mouse wheel and scrollbar slider moved text by a fixed
number of pixels, resulting in partial lines at the top of the editor
box. The change also applies to the shell and grep output windows,
but not to read-only text views.

* Fix AttributeError (not all SSL exceptions have 'errno' attribute)

* Increase default handshake timeout from 10 to 60 seconds
* Make sure start_tls can be cancelled correctly
* Make sure any error in SSLProtocol gets propagated (instead of just being logged)

The bytes parameter uses big endian.

Fix test_warnings.test_module_globals() when python3 is run with
-Werror.

Homebrew's python is now python3, but travis preinstalls old python2.
So updated Homebrew requires `brew upgrade python` now.

This commit disables auto update and use preinstalled version of Homebrew.

It depended on a global variable set by other tests.

* Prevent spurious message if taking a shortcut
* Fix YAML style
* Disable largefile tests

Separate tests leaked files or were depended on files leaked in other tests.

`writerows()` takes an iterable.

This is a simple grammatical fix correcting "...object whose `__self__` attributes is ..." to "...object whose `__self__` attribute is ...".