Need update and a guide to run this project on idea

[ltn614]

This is a very great project for pepole want to use kotlin to develop frontend and backend, but two major problem must be sloved to satisfy those pepole:

1. update this project to working with ktor 0.9
2. a guide to how to config this to run on idea

Thanks for the open source effort again, learn so much

[orangy]

0.9.1 is already out there, should update to it