Fix compatibility issues with shadow-cljs esm build

Update other dependencies

Refactor codebase

Adds delay-emit operator

Set version to 2021.06.02-0

Set version to 2021.04.29-0

Set version to 2021.04.27-2

Set version to 2021.04.27-1

Set version to 2021.04.27-0

Set version to 2021.04.12-1