Update wagtail to 2.0

[pyup-bot]

There's a new version of wagtail available.
You are currently using 1.13.1. I have updated it to 2.0

These links might come in handy: PyPI | Changelog | Homepage

Changelog

2.0

• Added support for Django 2.0 (Matt Westcott, Karl Hobley, LB (Ben Johnston), Mads Jensen)
• Reorganised module paths (Karl Hobley, Matt Westcott)
• Replaced the hallo.js rich text editor with Draftail (Thibaud Colas, Loïc Teixeira, Matt Westcott)
• Removed support for Python 2.7, Django 1.8 and Django 1.10
• Removed support for Elasticsearch 1.x
• Added the ability to schedule updates to existing published pages (Patrick Woods)
• Moved Wagtail API v1 implementation (wagtail.contrib.api) to an external app (https://github.com/wagtail/wagtailapi_legacy) (Karl Hobley)
• The page chooser now searches all fields of a page, instead of just the title (Bertrand Bordage)
• Implement ordering by date in form submission view (LB (Ben Johnston))
• Elasticsearch scroll API is now used when fetching more than 100 search results (Karl Hobley)
• Added hidden field to the form builder (Ross Crawford-d'Heureuse)
• Usage count now shows on delete confirmation page when WAGTAIL_USAGE_COUNT_ENABLED is active (Kees Hink)
• Added usage count to snippets (Kees Hink)
• Moved usage count to the sidebar on the edit page (Kees Hink)
• Explorer menu now reflects customisations to the page listing made via the construct_explorer_page_queryset hook and ModelAdmin.exclude_from_explorer property (Tim Heap)
• "Choose another image" button changed to "Change image" to avoid ambiguity (Edd Baldry)
• Added hooks before_create_user, after_create_user, before_delete_user, after_delete_user, before_edit_user, after_edit_user (Jon Carmack)
• Added exclude_fields_in_copy property to Page to define fields that should not be included on page copy (LB (Ben Johnston))
• Improved error message on incorrect {% image %} tag syntax (LB (Ben Johnston))
• Optimized preview data storage (Bertrand Bordage)
• Added render_landing_page method to AbstractForm to be easily overridden and pass form_submission to landing page context (Stein Strindhaug)
• Added heading kwarg to InlinePanel to allow heading to be set independently of button label (Adrian Turjak)
• The value type returned from a StructBlock can now be customised (LB (Ben Johnston))
• Added bgcolor image operation (Karl Hobley)
• Added WAGTAILADMIN_USER_LOGIN_FORM setting for overriding the admin login form (Mike Dingjan)
• Snippets now support custom primary keys (Sævar Öfjörð Magnússon)
• Upgraded jQuery to version 3.2.1 (Janneke Janssen)
• Updated documentation styling (LB (Ben Johnston))
• Rich text fields now take feature lists into account when whitelisting HTML elements (Matt Westcott)
• FormPage lists and Form submission lists in admin now use class based views for easy overriding (Johan Arensman)
• Form submission csv exports now have the export date in the filename and can be customized (Johan Arensman)
• FormBuilder class now uses bound methods for field generation, adding custom fields is now easier and documented (LB (Ben) Johnston)
• Added WAGTAILADMIN_NOTIFICATION_INCLUDE_SUPERUSERS setting to determine whether superusers are included in moderation email notifications (Bruno Alla)
• Added a basic Dockerfile to the project template (Tom Dyson)
• StreamField blocks now allow custom get_template methods for overriding templates in instances (Christopher Bledsoe)
• Simplified edit handler API (Florent Osmont, Bertrand Bordage)
• Made 'add/change/delete collection' permissions configurable from the group edit page (Matt Westcott)
• Update autoprefixer configuration to better match browser support targets (Janneke Janssen)
• Update React and related dependencies to latest versions (Janneke Janssen, Hugo van den Berg)
• Remove Hallo editor .richtext CSS class in favour of more explicit extension points (Thibaud Colas)
• Expose React-related dependencies as global variables for extension in the admin interface (Thibaud Colas)
• Added helper functions for constructing form data for use with assertCanCreate (Tim Heap, Matt Westcott)
• Fix: Do not remove stopwords when generating slugs from non-ASCII titles, to avoid issues with incorrect word boundaries (Sævar Öfjörð Magnússon)
• Fix: The PostgreSQL search backend now preserves ordering of the QuerySet when searching with order_by_relevance=False (Bertrand Bordage)
• Fix: Using modeladmin_register as a decorator no longer replaces the decorated class with None (Tim Heap)
• Fix: Fixed crash in XML sitemap generator when all pages on the site are private (Stein Strindhaug)
• Fix: The {% routablepageurl %} template tag no longer generates invalid URLs when the WAGTAIL_APPEND_SLASH setting was set to False (Venelin Stoykov)
• Fix: The "View live" button is no longer shown if the page doesn't have a routable URL (Tim Heap)
• Fix: Fixed rendering of border on dropdown arrow buttons on Chrome (Bertrand Bordage)
• Fix: Fixed incorrect z-index on userbar causing it to appear behind page content (Stein Strindhaug)
• Fix: Form submissions pagination no longer looses date filter when changing page (Bertrand Bordage)
• Fix: PostgreSQL search backend now removes duplicate page instances from the database (Bertrand Bordage)
• Fix: FormSubmissionsPanel now recognises custom form submission classes (LB (Ben Johnston))
• Fix: Prevent the footer and revisions link from unnecessarily collapsing on mobile (Jack Paine)
• Fix: Empty searches were activated when paginating through images and documents (LB (Ben Johnston))
• Fix: Summary numbers of pages, images and documents were not responsive when greater than 4 digits (Michael Palmer)
• Fix: Project template now has password validators enabled by default (Matt Westcott)
• Fix: Alignment options correctly removed from TableBlock context menu (LB (Ben Johnston))
• Fix: Fix support of ATOMIC_REBUILD for projects with Elasticsearch client >=1.7.0 (Mikalai Radchuk)
• Fix: Fixed error on Elasticsearch backend when passing a queryset as an __in filter (Karl Hobley, Matt Westcott)
• Fix: __isnull filters no longer fail on Elasticsearch 5 (Karl Hobley)
• Fix: Prevented intermittent failures on Postgres search backend when a field is defined as both a SearchField and a FilterField (Matt Westcott)
• Fix: Alt text of images in rich text is no longer truncated on double-quote characters (Matt Westcott)
• Fix: Ampersands in embed URLs within rich text are no longer double-escaped (Matt Westcott)
• Fix: Using RGBA images no longer crashes with Pillow >= 4.2.0 (Karl Hobley)
• Fix: Copying a page with PostgreSQL search enabled no longer crashes (Bertrand Bordage)
• Fix: Style of the page unlock button was broken (Bertrand Bordage)
• Fix: Admin search no longer floods browser history (Bertrand Bordage)
• Fix: Version comparison now handles custom primary keys on inline models correctly (LB (Ben Johnston))
• Fix: Fixed error when inserting chooser panels into FieldRowPanel (Florent Osmont, Bertrand Bordage)
• Fix: Reinstated missing error reporting on image upload (Matt Westcott)
• Fix: Only load Hallo CSS if Hallo is in use (Thibaud Colas)
• Fix: Prevent style leak of Wagtail panel icons in widgets using h2 elements (THibaud Colas)

Got merge conflicts? Close this PR and delete the branch. I'll create a new PR for you.

Happy merging! 🤖

[pyup-bot]

Closing this in favor of #94