* This commit only covers the migration of the icons in the menu and draftail editor. All
other admin menu icons remain implemented as before.
* Existing font based icon support still exists.
* Convert menu icons to SVG
* This could be considered a breaking change for any Wagtail sites or
packages that are leveraging Wagtail's Button and Icon React components.
* Remove references to unused `submenu-trigger` class
* Prefix icon `id`s with `icon-` to prevent `id` collisions
* Add hooks support (not yet documented) for adding custom icons
* Jest 24 is out but upgrading to it would require us to also update our Webpack tooling to Babel 7, which is quite significant work.
* Rewrite Draftail initialisation tests to stop relying on jsdom script parsing
When a slice is specifically set to [0:0], which would yield an empty list,
instead wagtail will clear the slice, effectively downloading the entire search
index.
This scenario happens when a search term does not return any results.
So every time you enter a search term that has no results, the entire search
index is downloaded, you don't really feel it because wagtail only downloads
the pk values, and it is unlikely a site has millions of pages, but it is still
very inefficient and unwanted.
* bulk_delete exists to avoid allowing users to delete a whole lot of pages all at once by mistake, when they think they're just deleting one. However, the move/delete analogue breaks down when you're talking about moving an entire subtree, because you're *not* directly altering the children of the moved Page.
* This method was inspired by a Lacey Williams Henschel (@williln) presentation at Wagtail Space US 2018, called 'What the Wagtail docs don't tell you'. https://www.youtube.com/watch?v=PCkxBNXWM64&t=1220s
* Add docs section reference/contrib/redirects
* Update ImageRendtion to use default_alt_text property of Image
* Update example in documentation
* Add a test for ImageRenditionField
* Resolves #5816
* Rewrite AbstractEmailForm render to use cleaned_data
* Add date time formatting to AbstractEmailForm's render method according to Django settings SHORT_DATE_FORMAT and
SHORT_DATETIME_FORMAT
* Previously it was iterating over `form` which left no place to remove
data from the submission without removing the field from the form (which
is inadvisable, as discussed on #4313)
* Preserve order of fields in form emails using cleaned data
* Add a test for consistent date rendering in email forms
* update form customisation examples and add note about date / time formatting in email form usage (docs)
* resolves #3733
* resolves #4313
* adds users view to group view (users filtered by that group)
* adds the ability to go to the users list for the group currently being edited (via header link)
* fix issue where the link to add a new user (when no users found) was broken
* resolves #5801
