Port for 1.20.1 ! :)

I ported 0.5.7 for 1.20.1 finally. Some (and unnecessary for most people) stuff from 0.5.7 unported - that's /vodium recprofile command. So 0.5.7 ~= 0.5.2 *0.5.2 from version is counting by commits in inner work-repo, so some unported commits downgraded version here.