release: cut the 0.24.1 release (NativeScript#930)

release: cut the 0.24.0 release (NativeScript#916)

chore: manually update CHANGELOG for release from 0.22.0 to 0.24.0

release: cut the 0.22.0 release

release: cut the 0.21.2 release

release: cut the 0.21.1 release

Merge pull request NativeScript#840 from NativeScript/release-0.21.0

release: cut the 0.21.0 release

release: cut the 0.20.3 release (NativeScript#831)

cut the 0.20.1 release (NativeScript#803)

cut the 0.20.1 release (NativeScript#803)

docs: update breaking changes/migration (NativeScript#795)