Fixed MatchingService.midiEvents2xy. Test status: 23/5/0
Refactoring MatchingService.midiEvents2xy
Refactoring: from QString to QByteArray
Added MatchingHandler test. Test status: 24/6/0
Comment out debug informations
Added Song comparison test. Test status: 25/6/0
Added MatchingItem comparison. Test status: 25/7/0
Added MatchingService.getTransposition test. Test status: 25/8/0
Fixed MatchingService.getTransposition test. Test status: 26/7/0