I've refactored the code of FreeColTestCase and FSGConverter to use dp4j.com.
I thought the refactorings would be desirable because:
- compile-time checking of reflection API calls + Singleton enforcement
- fewer lines of code
- simpler code (no reflection API), no Singleton implementation details
Please note that only dp4j-1.2-SNAPSHOT, available here works with the patch. I'll be happy if you accept my contribution to this popular game.