Additionally, switch to using JDK11 for build and runtime.
Notable changes:
- Updates lm-coursier to 2.0.0-RC6-4, which now uses OS-specific cache locations
- Updates Apache Ivy to handle HTTP redirects
- Updates sbt-giter8-resolver to 0.12.0, which brings in giter8.version support in project/build.properties
- Displays welcome banner with sbt version and Java version