Fixed some spelling issues in docs.
Added Python 3.4 to list of supported version in docs/intro/install.txt
Fixed #16205 -- Added an installation for Windows.
Refs #21230 -- removed direct settings manipulation from signed cookies tests
Fixed #13408 -- Deprecated silent unpacking exception passing in for template tag.

Thanks peterbe for the suggestion.
Fixed small typo in django-admin.txt

The word 'by' seemed to be missing from the first line of the compilemessages command.
Noted that pip is included with Python 3.4 in Windows install guide.

Thanks CHI Cheng.
Used more specific test assertions.
Fixed #21553 -- Ensured unusable database connections get closed.
Fixed #22401 -- Deprecated regular expression parsing of initial SQL in favor of installing sqlparse.
Fixed #22343 -- Disallowed select_for_update in autocommit mode

The ticket was originally about two failing tests, which are
fixed by putting their queries in transactions.

Thanks Tim Graham for the report, Aymeric Augustin for the fix,
and Simon Charette, Tim Graham & Loïc Bistuer for review.
Documentation fixes for the select_for_update change.

Refs #22343; thanks Tim Graham for the fixes.
Fixed #22412 -- More nuanced advice re template filters and exceptions.

Thanks Tim for review.
Fixed #22195 -- Used constants to define built-in tags for check framework.

Thanks Elvard for the patch.
Fixed #22194 -- Added --list-tags option to check command.

Thanks Elvard for the patch.
Refactored some code in SelectDateWidget.
Fixed #22364 -- Sanitized getpass input in changepassword.

Python 2 getpass on Windows does not accept unicode, even
when containing on ASCII characters. Related #190807.
Fixed #21353 -- Noted that description is ignored for TabularInlines.

Thanks nofinator for the report.
Fixed #22321 -- Wrapped exceptions in _set_autocommit.

Refs #21202.
Fixed #21239 -- Maintained atomicity when closing the connection.

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