- modified toString() in Kalaha.java and SpelersKom.java
- extracted method for getSpelerAandeBeurt()
- todo: implement doeZet() test
implemented doeZet() in SpelersKom; needs more verification
- moved geefStenenDoor() to Kom
- Kalaha->voegToe() returns true when last stone was dropped in it
implemented case when last stone is added to empty players bowl