Update wagtail to 2.0.1

[pyup-bot]

This PR updates wagtail from 1.13.1 to 2.0.1.

Changelog

2.0.1

~~~~~~~~~~~~~~~~~~

* Added error notification when running the `wagtail` command on Python <3.4 (Matt Westcott)
* Added error handling to the Draftail editor (Thibaud Colas)
* Fix: Draftail now supports features specified via the `WAGTAILADMIN_RICH_TEXT_EDITORS` setting (Todd Dembrey)
* Fix: Password reset form no longer indicates whether the email is recognised, as per standard Django behaviour (Bertrand Bordage)
* Fix: `UserAttributeSimilarityValidator` is now correctly enforced on user creation / editing forms (Tim Heap)
* Fix: Editing setting object with no site configured no longer crashes (Harm Zeinstra)
* Fix: Creating a new object with inlines while mandatory fields are empty no longer crashes (Bertrand Bordage)

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)

Links

• PyPI: https://pypi.org/project/wagtail
• Changelog: https://pyup.io/changelogs/wagtail/
• Homepage: http://wagtail.io/

[pyup-bot]

Closing this in favor of #143