Added 'polls' sub directory under static and reorganized to more accurately represent the project; compared using 'tree' command.
Merge pull request #1024 from jktravis/master

Updated reusable apps doc's review of project layout
Fixed #19211 -- Adapted tutorial for Python 3
Fixed #20270 -- Fixed error in AjaxResponseMixin documentation
Clearer explanation when exception has no message

"No exception supplied" is misleading; actually there is an exception,
but there's no message string.
Fixed #20307 -- Word repeated in tutorial.

Replaced "the the" in the tutorial with "the".
Fixed the reusable apps docs to use a rst file extension for the README and follow PEP8 a bit more.
Fixed a rST bug in the README template in the reusable apps docs.
Fixed documentation of disable_constraint_checking

The docstring and base implementation of disable_constraint_checking do not indicate that a return value is expected for proper behavior.
Fix CharField typo in legacy-databases.txt docs

The example Person model in the legacy databases HowTo had a typo referring to ChaField instead of Charfield
Merge pull request #1029 from carmi/patch-1

Fix CharField typo in legacy-databases.txt docs
Updated Transifex links to the Django project

Translations for the Django framework are now hosted on the
django-core Transifex project, and the django project is only
dedicated to a team-only hub project.
Removed an errant ipdb import from commit 9777442
Negligible formatting fixes in query_utils.py
Converted a list comprehension into a generator expression in query_utils.py
Fixed #20321 -- Added missing key name in MergeDict KeyError message

Thanks mark.harviston et gmail.com for the report.
Fixed #18336 -- Doubled request_queue_size.

This reduces random failures to load static files with Google Chrome.
Pointed to the docs version switcher in tutorial 1.

Refs #20324. Thanks dwisehart for the suggestion.
Fixed #18986 -- Improved error message for missing files

in CachedStaticFilesStorage. Thanks zyegfryed for his work on the patch.
Tested that get_or_create raises IntegrityError.

It used to raise "DatabaseError: no such savepoint" with the old
transaction management. Closes #15117.