Added 1.6.3 release note for refs #22256.
Don't copy list for iteration.
Refactor. Stop using memory for list copies.
Merge pull request #2508 from tomwys/patch-1

Don't copy list for iteration.
Merge pull request #2509 from tomwys/patch-2

Refactor. Stop using memory for list copies.
Revert "Merge pull request #2508 from tomwys/patch-1"

This reverts commit c45607e9395ffd05c2cff454fdb55b3ab05dc0e3, reversing
changes made to 9769337ca855f4831c855d6663ff3f688ee1652d.
Added an explanatory comment. Refs #22017
Fixed #22347 -- Unified FileSystemStorage documentation.

Thanks nliberg for the report.
Document removal of GeoDjangoTestSuiteRunner in 1.6 release notes.
Fixed #22218 -- Deprecated django.conf.urls.patterns.

Thanks Carl Meyer for the suggestion and Alex Gaynor and Carl for reviews.
Fixed #22372 -- Improved description of WizardView.get_context_data().

Thanks simon29 for the report.
Fixed typo in 1.8 release notes.
Cleaned up string detection for a deprecation warning by using six.string_types.
Fixed #22363 -- Correctly serialize `django.utils.datetime_safe` objects.

Thanks to linovia for the report.
Fixed #22350 -- Consistently serialize bytes and text in migrations.

Thanks to @treyhunner and Loïc for their extensive review.