How to upgrade from FlowKit to Owl?

[tamasberesoebb]

Please include documentation about upgrading from FlowKit to Owl.

Should anyone replace FlowKit with Owl in an existing project?

FlowKit currently does not even compile on my machine, because I have switched to Swift 5. I guess my only option to keep using FlowKit, is to downgrade Xcode.

[AgapovOne]

Had a lot of style changes in code.
Make sure you properly use new register(_:) methods on cells and headers/footers, cause they are called on registerAdapter.
ModelProtocol -> ElementRepresentable is fairly easy if you use Hashable on a model.