Fix broken tests

Tests/Calculation/EventAssignmentTests.cs

@@ -18,7 +18,7 @@ public class EventAssignmentTests
 		var eventAssignment = new EventAssignment(events, students, new AssignmentParameters());
 		var solution =  eventAssignment.Solve().Result;
 
-		var teamWriter = new TeamWriter(solution.Teams, @"c:\temp\teams.csv");
-		teamWriter.Write();
+		//var teamWriter = new TeamWriter(solution.Teams, @"c:\temp\teams.csv");
+		//teamWriter.Write();
 	}
 }