This is a bit faster than ours, which is good, because it lets you increase
the iteration counts.

This will be used on Python 3.4+, and, pending the acceptance of PEP466, on
newer Python 2.7s.

Revert "Fixed #22401 -- Deprecated regular expression parsing of initial SQL in favor of installing sqlparse."

This reverts commit 071c9337.

This introduced a regression on MySQL and custom SQL is deprecated.

Thanks tomwys for the suggestion.

Thanks EvilDMP for the suggestions.

Thanks maciej.pawlisz for the report, and charettes for the review.

The published commnand was not working when the user did not have
the git client set-up with the public-key. Changed the contributing
guide to clone it from https instead.

Thanks Eugenio Cano-Manuel.

Thanks Josh Brown for the suggestion.

Django 1.7 introduces a new timeout parameter for the SMTP email backend:
http://docs.djangoproject.com/en/dev/topics/email/#django.core.mail.backends.smtp.EmailBackend.timeout

However, there was no mention of the default value for this parameter.

Thanks zjcheah at yahoo.com for the report.

Ticket 18586

Refactored get_or_create test into several smaller test functions across two
different test classes. Also converted the comments over to docstrings.

Fixed #22398 -- Added detail about callable in KEY_FUNCTION docs

Thanks to @treyhunner and Loïc for their suggestions and review.

Thanks Claude Paroz for the report.

Regression introduced by commit 97774429. Refs #21410.

Refs #20032, #18824. Thanks ztorstri at gmail.com for the report.

Thanks aptiko for the reporti and Tim Graham for the review.

Thanks Josh Kupershmidt.

Thanks intgr for the report.

This commit doesn't include a test because I don't know how to emulate a
database disconnection in a cross-database compatible way.

Also simplified a 'backends' test that was constrained by this problem.

Refs #15802 -- Reverted #7c657b24 as BaseDatabaseWrapper.close() now
has a proper "finally" clause that may need to preserve self.connection.

Refs #21202.

Thanks nofinator for the report.

Python 2 getpass on Windows does not accept unicode, even
when containing on ASCII characters. Related #190807.

Thanks Elvard for the patch.

Thanks Elvard for the patch.

Thanks Tim for review.