shading fix
- Fixes shading not inserting unmanaged dependencies appropriately in the jar. #233 by @damdev
- Fixes "VerifyError: Inconsistent stackmap frames" issue by updating library dependency Jar Jar Links 1.6.3 and asm 5.2. See also #317586. #237 by @pomadchin
minor enhancements and bug fixes
- Change prependShellScript to always use line feed. #210 by @naegelejd
- Scalactic is bumped to 3.0.1. #237 by @pomadchin