Since there is no way to override SlugField and AutoSlugField in existing Oscar models, it was decided to pass `allow_unicode` parameter if this setting enable. This allows to achieve backwards compatibility with Django versions under 1.9, when this parameter was not supported yet. If parameter specified in the field expliticly - we do not override it, which allow to control slug fields individually in a normal way. For the reasons, explained above, standard SlugField was replaced with a custom one with the single slight change - control over `allow_unicode` parameter by the mentioned setting.

This commit adds a bit of documention around the Elasticsearch support
introduced in #1572. It also shuffles around the handler names to be
more consistent.

This was an oversight that is now corrected.

This commit also switches to the more appropriate pattern_name variable
instead of reversing ourselves.

Building upon the previous commit, we now use ordered dicts for our
search facets.

This commit removes a few long deprecated bits in the docs and in
code. It also updates the
release notes to include those removals, and highlights what has been
deprecated in 0.8. And it fixes a Sphinx warning when building the docs.

Currently, a product's stockrecords are used to decide if a user is
allowed to edit a product or not. That doesn't work for parent products,
because they don't have stockrecords. So it's not possible to decide
whether a user is allowed to edit a parent product (and e.g. create
children) for it.

As far as I'm aware, this is not a regression of the
permission-dashboard; I don't think it ever worked. It just hasn't been
spotted because nobody needed it.

This commit also adds some tests to ensure this is enforced.

It only prevents adding a product to a range; offers can be applied
nonetheless (despite the docs saying otherwise). The same functionality
can be achieved by overriding get_is_discountable, so it can be safely
removed.

It must be left over from more glorious times.

This is the squashed version of #1369.

Closes #1369.

Oscar by default deleted image files and thumbnails. That is usually
fine, but has been an issue when using remote storages like S3. This
change also makes the only remaining import from sorl optional, hence
paving the way to making it completely optional.

Fixes #1373.

The howto recipe on shipping has been rewritten to describe the new
changes to shipping functionality. The old shipping app reference has
been merged in too to avoid duplication.

Importing things in settings is discouraged. But until now,
OSCAR_SLUG_FUNCTION could only be set as a callable, which requires
importing. It's now been updated to use the import_string function.

Seems like a good practice to define them explicitly.

Cherry-picked from d755aae.

The getting started guide now explicitly mentions copying the "missing
image" image when working with a remote file storage. Was raised in
issue #1314.

Oscar is slowly adding better support for switching languages on the
fly. That also means that locales need to be switched.

The issue this commit tries to fix is that when switching languages, the
locale for rendering prices doesn't change, and hence prices are
formatted incorrectly.
Oscar used to require hardcoding the locale for prices via
OSCAR_CURRENCY_LOCALE. I'm not sure what the reasoning behind this was,
because as far as I'm aware, the locale can be auto-detected from the
current language. This not only reduces complexity, but nicely works
when switching languages.

This allows importing a class or attribute by the reasonably common
string notation, which is useful for e.g. settings. When using settings,
we should prefer absolute imports over using get_class, because that
limits us to modules in INSTALLED_APPS.

We send the user's email address too.

* It can now be specified in OSCAR_DASHBOARD_DEFAULT_ACCESS_FUNCTION
* nav.py and menu.py were split up so that Node can be dynamically
  loaded and hence overridden

I recently needed to alter the access function and realised it's not as
easy as I thought.

Allow using a different app than promotions as the homepage view.

Plus ensure the copyright notice is correct for the modified phone
number work.

Now using Napoleon :)

- Expand the ref/apps docs. (Still lots to do here.)
- Split up the index page links for clarity.

Added to release notes & settings reference.

This reverts commit 7075ba6594.

Done as it became apparent in #968 that further clarification is needed.

This setting never did anything. Added documentation for it being
dropped.