doc fixing

Merge branch 'release/3.9.x' of github.com:django-cms/django-cms into…

… release/3.9.x

[3.9.0rc3 release process] updating latest docs

[Official] Release/3.9.0rc2 (django-cms#7053)

* [3.9.0rc2 release process] Bumped version to 3.9.0rc2
* [3.9.0rc2 release process] compilemessages
* [3.9.0rc2 release process] compiling new static files
* [3.9.0rc2 release process] updating latest docs

[OFFICIAL] Release/3.9.0 RC1 (django-cms#7047)

* [3.9.0rc1 release process] Bumped version to 3.9.0rc1
* [3.9.0rc1 release process] compilemessages
* [3.9.0rc1 release process] compiling new static files
* [3.9.0rc1 release process] updating latest docs

Release 3.8.0 (django-cms#6928)

* generate messages

* bumped version to 3.8.0

* remove old static files

* added new static files

* added release date

* precent occasional failures due to timeouts

Release django CMS RC1 (django-cms#6906)

* Bumped version to 3.8.0

* building locales

* add translation files

* added new translations

* compile new static files

* add bug fixe section to upgrade docs

* changed version to use rc1!

Release 3.7.4 (django-cms#6881)

* add patch

* bumdle

* bump version

Release 3.6.1 (django-cms#6880)

* fix tests

* update config file

* validate

* fixes?

* update bundle

* bump version

* add patch

* maybe required?

* update tests

* change setup

* ignore for now

* remove failures

* fixes

* really?

Release 3.5.4 (django-cms#6879)

* update tests

* updates

* build update

* fix lint

* update bundle

* Bump version