Peregrine

What's Changed
* We do not yet support Wagtail 3, so require 2.x (thanks tdxdave!).

**Full Changelog**: https://github.com/flipperpa/peregrine/compare/0.5.0...0.5.1

- support and require Wagtail 2.15 LTS or greater
- support Django 3.x
- remove suport for Django 2.2 or less

* Support and require Wagtail version 2.9 or greater
* Require `django-bootstrap4` version 2 or greater (for `six` deprecation)
* Only allow text in OpenGraph descriptions

This release adds OpenGraph support for social media sites to have a preview. It allows for the following Django settings to be used:

python
WAGTAIL_SITE_NAME = "PyPhilly: Home of Tim Allen, aka FlipperPA"
WAGTAIL_SITE_DESCRIPTION = "PyPhilly is the website of Tim Allen, a web developer living in Philadelphia. Tim has a wide range of interests, but mostly writes about Python, Django, and virtual reality."
WAGTAIL_SITE_URL = "https://PyPhilly.org/"


On pages and posts, it will override those settings to use the contents of the specific page or post.