[hibernate-dev] ORM 6 branch

This Wednesday we plan to release 6.0 Alpha1 and I thought it best to start discussing how to best handle the 6.0 and master branches. I think we should keep 6.0 a little while longer in my fork and 5.4 as master until 6.0 becomes more stabilized to make it easier for 5.4 maintenance. And reconsider as we approach Beta1. But this affects everyone, so wanted to see what others thought...