Wagtail-meeting-guide

* Upgrades to the latest TSML-UI front-end version.
* Color codes Active vs Inactive meetings, with Zoom and Phone hot links.
* Clicking an Active address brings up directions on Google.

* Adds new meta Meeting Types, "In Person" and "Online".
* These new types are automatically added to meetings:
* If a meeting has a `conference_url` populated, it is tagged as "Online".
* If a meeting has a `formatted_address` with three or more commas, and is not Temporarily Closed, it is tagged as "In Person". This avoids `Virtual Only` meetings with locations without a street address being shown.
* `123 Main Street, Philadelphia, PA, 19000, USA` will be tagged as "In Person", because it has three or more commas.
* `Philadelphia, PA, USA` will not be tagged as "In Person", as it has less than three commas.

* Our first major release! This has been running in production for over a year for SEPIA, the Southeastern Pennsylvania Intergroup Association.
* This contains many bugfixes since our last major beta release over a year ago.

Bug Fixes
* Fix meeting pin location.
* Only show live Wagtail pages for `Locations` and `Meetings`.
* Do not allow choosing regions without a parent.

New Features
* Add time to the meeting search in addition to date.
* Switch to an explicit cache entry for the API feed; clear cache entry when a `Meeting` or `Location` is saved.

Meta
* Add the BSD license file.
* Switch to `setuptools-scm` and remove `MANIFEST.in`.