Release 1.20.0

### Added

* Beyond Multisite

### Dependency updates

* add-to-any: 1.8.16 -> 1.8.17

* akismet: 5.6 -> 5.7

* genesis-simple-hooks: 2.3.0 -> 2.3.2

* google-analytics-for-wordpress: 10.0.3 -> 10.1.3

* really-simple-ssl: 9.5.8 -> 9.5.10

* tablepress: 3.2.8 -> 3.3

* wp-accessibility: 2.3.2 -> 2.3.3

* wp-mail-smtp: 4.7.1 -> 4.8.0

* wordpress-seo: 27.2 -> 27.5