[1.6.x] Add missing disclosure information to security archive.
[1.6.x] Fixed #22426 -- Added support old-style d.c.messages format.

Forward ported code from 1.5 that adds backwards compatibility with legacy message length.
See commit 9e7183073f64e541587e8dcfd8bb3ddeb47f8162 for details.

Thanks to Ofir Ovadia for the initial patch.

Backport of f286721f7fdc2202f77a5f4d650d9d0779b86811 from master
[1.6.x] Post release version bump.
[1.6.x] Added 1.6.4 release note stub.

Backport of 9fb95dfc9f from master
[1.6.x] Updated grammar in description of django.contrib.auth.

Backport of 9853779805 from master
[1.6.x] Various documentation typo/spelling fixes

Errors detected by Topy (https://github.com/intgr/topy), all changes
verified by hand.

Backport of 11d453bcadad3c9a5ae35882792d0f1e8e8e7818 from master
[1.6.x] Fixed #22486 -- Restored the ability to reverse views created using functools.partial.

Regression in 8b93b31487d6d3b0fcbbd0498991ea0db9088054.

Thanks rcoup for the report.

Backport of 3c06b2f2a3 from master
Removed bad import in last commit.
[1.6.x] Renamed Transifex project from django-core to django

See also http://blog.transifex.com/post/83622601443/new-teams-management-transifex
Backport of 7c24027ba from master.
[1.6.x] Fixed #22515 -- Fixed the object_id of the LogEntry that's created after a user password change in the admin.

Thanks ross at servercode.co.uk for the report.

Backport of 9e7f86b890 from master
[1.6.x] Fixed #22516 -- Added versionchanged annotation for STATIC_ROOT default value.

Backport of 658710be00 from stable/1.7.x
[1.6.x] Fixed #22493 - Added warnings to raw() and extra() docs about SQL injection

Thanks Erik Romijn for the suggestion.

Backport of 3776926cfe503f16c7195621da20c5b89bda70a2 from master
[1.6.x] Fixed #22504 -- Corrected domain terminology in security guide.

Thanks chris at chrullrich.net.

Backport of f65eb15ac6 from master
[1.6.x] Fixed #22507 -- Clarified nature of the sender argument of signals

Backport of d1f93e9c1e from master.
[1.6.x] Bump version for 1.6.4 bugfix release.
Merge tag '1.6.4' into legalsense/1.6

Tag 1.6.4