Save settings after every solved puzzle

EduNetworkBuilder/NBSettings.cs

@@ -108,6 +108,12 @@ namespace EduNetworkBuilder
             return Path.Combine(BaseDir, FileName);
         }
 
+
+        public void Save()
+        {
+            Save(NB.IsRunningOnMono());
+        }
+
         public void Save(bool UsingMono)
         {
             if(UsingMono)

EduNetworkBuilder/Network.cs

@@ -813,6 +813,7 @@ namespace EduNetworkBuilder
                 if (!oursettings.ScoreList.Contains(PuzzleName))
                 {
                     oursettings.ScoreList.Add(PuzzleName);
+                    oursettings.Save();
                 }
             }
             //kill all extra windows that no longer need to be open.