2.0.0 release notes

• Includes everything from 1.1 released in tandem.

• Includes new SVG icon in settings panel. Previously this icon was either the cog, or the lighthing bolt if wagtailfontawesome was installed.

• Supports Wagtail 3 and only Wagtail 3. Wagtail 2 support will be maintained in the 1.x series as needed.