Fixed #22073 - Ensure CreateTable operation handles backwards migration correctly when M2M fields are present
Fixed #22168 -- Fixed migrations failing on sqlite when column names are SQL keywords

Thanks to trac user fallen_flint for the report and initial patch.
Fixed #15318 -- Added settings for language cookie max-age, path, domain

Introduced a number of settings to configure max-age, path, and domain
for the language cookie: LANGUAGE_COOKIE_AGE, LANGUAGE_COOKIE_PATH and
LANGUAGE_COOKIE_DOMAIN.

Thanks sahid for the suggestion.
Fixed #22130 -- Deprecated fix_ampersands, removed utils.clean_html()
Merge pull request #2382 from erikr/deprecate-fix-ampersands

Fixed #22130 -- Deprecated fix_ampersands and clean_html.
Fixed #22172 -- Allowed index_together to be a single list (rather than list of lists)..

Thanks EmilStenstrom for the suggestion.
Added newline for flake8.
Fixed #22130 -- fixed template_tests/defaultfilters order dependent test failure
Restored aliases for two APIs removed by app-loading.
Merge pull request #2383 from erikr/fix-tests-fix-ampersands-deprecation

Fixed #22130 -- fixed template_tests/defaultfilters order dependent test failure
Fixed some typos in the documentation.

Thanks to Rodolfo Carvalho and Piotr Kasprzyk
for the patch.
Removed WSGI upgrade instructions for Django 1.3 and earlier.
Edited contrib.admin check messages for grammar and consistency.
Edited contrib.auth check messages for grammar and consistency.
Cleanup of contrib.contenttypes check messages.
Edited contrib.sites check messages for grammar and consistency.
Edited MySQL-specific check messages for grammar and consistency.
Edited model check messages for grammar and consistency.
Edited model and field checks for grammar and consistency.
Added first cut at reference documentation for the checks framework.