v0.1.1 release checklist meta-issue

[azonenberg]

• Changelog updated for all new features and bugfixes since v0.1
• Create release notes file
• Tag RC and test packages on all platforms
• Post-RC bugs fixed if any
• Tag release, sign Windows and MacOS packages, upload
• Update authors list with any new contributors who didn't have commits in v0.1

[azonenberg]

All done. Updating release notes and tagging the release momentarily.