Revert "Bring up-to-date with whoops/reagent"

Reverts reagent-project/reagent-core#1

@holmsand's interop branch is probably a better starting point than mine. Let's wait for him to merge that into master and cut a new release and then we can pull those changes in here. Another option would be to remove this project and move @holmsand's project into the org in it's place.