Log Message:
Update to wagtail-2.10:

 * Added Django 3.1 support (Matt Westcott, Karl Hobley)
 * Removed support for Python 3.5
 * Implemented configurable moderation workflow (Jacob Topp-Mugglestone, Karl \ 
Hobley, Matt Westcott, Dan Braghis)
 * Implemented phrase searching and structured search query expressions (Karl Hobley)
 * Add ability to import redirects from an uploaded file (CSV, TSV, XLS, and \ 
XLSX) (Martin Sandström)
 * Added `webpquality` and `format-webp-lossless` image filters and \ 
`WAGTAILIMAGES_WEBP_QUALITY` setting (Nikolay Lukyanov)
 * Reorganised Dockerfile in project template to follow best practices (Tomasz \ 
Knapik, Jannik Wempe)
 * Added filtering to locked pages report (Karl Hobley)
 * Adds ability to view a group's users via standalone admin URL and a link to \ 
this on the group edit view (Karran Besen)
 * Redirect to previous url when deleting/copying/unpublish a page and modify \ 
this url via the relevant hooks (Ascani Carlo)
 * Added `next_url` keyword argument on `register_page_listing_buttons` and \ 
`register_page_listing_more_buttons` hooks (Ascani Carlo, Matt Westcott, LB (Ben \ 
Johnston))
 * `AbstractEmailForm` will use `SHORT_DATETIME_FORMAT` and `SHORT_DATE_FORMAT` \ 
Django settings to format date/time values in email (Haydn Greatnews)
 * `AbstractEmailForm` now has a separate method (`render_email`) to build up \ 
email content on submission emails (Haydn Greatnews)
 * Add `pre_page_move` and `post_page_move` signals (Andy Babic)
 * Add ability to sort search promotions on listing page (Chris Ranjana, LB (Ben \ 
Johnston))
 * Upgrade internal JS tooling; Node v10, Gulp v4 & Jest v23 (Jim Jazwiecki, \ 
Kim LaRocca, Thibaud Colas)
 * Add `after_publish_page`, `before_publish_page`, `after_unpublish_page` & \ 
`before_unpublish_page` hooks (Jonatas Baldin, Coen van der Kamp)
 * Add convenience `page_url` shortcut to improve how page URLs can be accessed \ 
from site settings in Django templates (Andy Babic)
 * Show more granular error messages from Pillow when uploading images (Rick van \ 
Hattem)
 * Add ordering to `Site` object, so that index page and `Site` switcher will be \ 
sorted consistently (Coen van der Kamp, Tim Leguijt)
 * Add Reddit to oEmbed provider list (Luke Hardwick)
 * Add ability to replace the default Wagtail logo in the userbar, via \ 
`branding_logo` block (Meteor0id)
 * Remove sticky footer on small devices, so that content is not blocked and \ 
more easily editable (Saeed Tahmasebi)
 * Add `alt` property to `ImageRenditionField` api representation (Liam Mullens)
 * Add `purge_revisions` management command to purge old page revisions (Jacob \ 
Topp-Mugglestone, Tom Dyson)
 * Render the Wagtail User Bar on non `Page` views (Caitlin White, Coen van der Kamp)
 * Add ability to define `form_classname` on `ListBlock` & `StreamBlock` (LB \ 
(Ben Johnston))
 * Add documentation about how to use `Rustface` for image feature detection \ 
(Neal Todd)
 * Improve performance of public/not_public queries in `PageQuerySet` (Timothy \ 
Bautista)
 * Add `add_redirect` static method to `Redirect` class for programmatic \ 
redirect creation (Brylie Christopher Oxley, Lacey Williams Henschel)
 * Add reference documentation for `wagtail.contrib.redirects` (LB (Ben Johnston))
 * `bulk_delete` page permission is no longer required to move pages, even if \ 
those pages have children (Robert Rollins, LB (Ben Johnston))
 * Add `after_edit_snippet`, `after_create_snippet` and `after_delete_snippet` \ 
hooks and documentation (Kalob Taulien)
 * Improve performance of empty search results by avoiding downloading the \ 
entire search index in these scenarios (Lars van de Kerkhof, Coen van der Kamp)
 * Replace `gulp-sass` with `gulp-dart-sass` to improve core development across \ 
different platforms (Thibaud Colas)
 * Add SVG icons to resolve accessibility and customisation issues and start \ 
using them in a subset of Wagtail's admin (Coen van der Kamp, Scott Cranfill, \ 
Thibaud Colas, Dan Braghis)
 * Switch userbar and header H1s to use SVG icons (Coen van der Kamp)
 * Remove markup around rich text rendering by default, provide a way to use old \ 
behaviour via `wagtail.contrib.legacy.richtext` (Coen van der Kamp, Dan Braghis)
 * Apply title length normalisation to improve ranking on PostgreSQL search \ 
(Karl Hobley)
 * Add `WAGTAIL_TIME_FORMAT` setting (Jacob Topp-Mugglestone)
 * Allow omitting the default editor from `WAGTAILADMIN_RICH_TEXT_EDITORS` \ 
(Gassan Gousseinov)
 * Disable password auto-completion on user creation form (Samir Shah)
 * Upgrade jQuery to version 3.5.1 to reduce penetration testing false positives \ 
(Matt Westcott)
 * Add ability to extend `EditHandler` without a children attribute (Seb Brown)
 * `Page.objects.specific` now gracefully handles pages with missing specific \ 
records (Andy Babic)
 * StreamField 'add' buttons are now disabled when maximum count is reached (Max \ 
Gabrielsson)
 * Use underscores for form builder field names to allow use as template \ 
variables (Ashia Zawaduk, LB (Ben Johnston))
 * Deprecate use of unidecode within form builder field names (Michael van \ 
Tellingen, LB (Ben Johnston))
 * Improve error feedback when editing a page with a missing model class (Andy Babic)
 * Change Wagtail tabs implementation to only allow slug-formatted tab \ 
identifiers, reducing false positives from security audits (Matt Westcott)
 * Add skip link for keyboard users to bypass Wagtail navigation in the admin \ 
(Martin Coote)
 * Ensure errors during Postgres search indexing are left uncaught to assist \ 
troubleshooting (Karl Hobley)
 * Add ability to edit images and embeds in rich text editor (Maylon Pedroso, \ 
Samuel Mendes, Gabriel Peracio)
 * Fix: Support IPv6 domain (Alex Gleason, Coen van der Kamp)
 * Fix: Ensure link to add a new user works when no users are visible in the \ 
users list (LB (Ben Johnston))
 * Fix: `AbstractEmailForm` saved submission fields are now aligned with the \ 
email content fields, `form.cleaned_data` will be used instead of `form.fields` \ 
(Haydn Greatnews)
 * Fix: Removed ARIA `role="table"` from TableBlock output (Thibaud Colas)
 * Fix: Set Cache-Control header to prevent page preview responses from being \ 
cached (Tomas Walch)
 * Fix: Accept unicode characters in slugs on the "copy page" form \ 
(François Poulain)
 * Fix: Remove top padding when `FieldRowPanel` is used inside a \ 
`MultiFieldPanel` (Jérôme Lebleu)
 * Fix: Add Wagtail User Bar back to page previews and ensure moderation actions \ 
are available (Coen van der Kamp)
 * Fix: Resolve issue where queryset annotations were lost (e.g. \ 
`.annotate_score()`) when using specific models in page query (Dan Bentley)
 * Fix: Prevent date/time picker from losing an hour on losing focus when \ 
12-hour times are in use (Jacob Topp-Mugglestone)
 * Fix: Strip out HTML tags from `RichTextField` & `RichTextBlock` search \ 
index content (Timothy Bautista)
 * Fix: Avoid using null on string `Site.site_name` blank values to avoid \ 
different values for no name (Coen van der Kamp)
 * Fix: Fix deprecation warnings on Elasticsearch 7 (Yngve Høiseth)
 * Fix: Remove use of Node.forEach for IE 11 compatibility in admin menu items \ 
(Thibaud Colas)
 * Fix: Fix incorrect method name in SiteMiddleware deprecation warning (LB (Ben \ 
Johnston))
 * Fix: `wagtail.contrib.sitemaps` no longer depends on SiteMiddleware (Matt \ 
Westcott)
 * Fix: Purge image renditions cache when renditions are deleted (Pascal \ 
Widdershoven, Matt Westcott)
 * Fix: Image / document forms now display non-field errors such as \ 
`unique_together` constraints (Matt Westcott)
 * Fix: Make "Site" chooser in site settings translateable (Andreas \ 
Bernacca)
 * Fix: Add missing dropdown icons to image upload, document upload, and site \ 
settings screens (Andreas Bernacca)
 * Fix: Prevent snippets’ bulk delete button from being present for screen \ 
reader users when it’s absent for sighted users (LB (Ben Johnston))
 * Fix: Fix group permission checkboxes not being clickable in IE11 (LB (Ben \ 
Johnston))