Full working version, but still some issues.

 - need to specify mainClass - mill should figure it out on its own
 - manifest isn't complete
 - javaDoc is missing version info, some javascript, and differs from sbt generated javaDoc, but it doesn include core and internal documentation
 - ivys are missing description, configurations, scala dependencies
 - poms use artifactId for name (instead of descrption), license is BSD-3-Clause, developer is missing url, dependencies are missing scala dependencies, but include a dependency on the library itself(!).