Bugfix: new line character corrected

Now the saved database files can be opened correctly.

KvizServer/app/src/main/java/onlab/kvizserver/GameActivity.java

@@ -247,7 +247,7 @@ public class GameActivity extends AppCompatActivity implements GameControlFragme
             OutputStream outputStream = new FileOutputStream(file);
             List<Question> allQuestions = Question.listAll(Question.class);
             for (int i = 0; i < allQuestions.size(); i++) {
-                outputStream.write((allQuestions.get(i).convertToString() + "\t").getBytes());
+                outputStream.write((allQuestions.get(i).convertToString() + "\n").getBytes());
             }
             outputStream.close();
             Toast.makeText(this, "Saved to: " + file.getCanonicalPath(), Toast.LENGTH_LONG).show();

KvizServer/app/src/main/java/onlab/kvizserver/QuestionListAdapter.java

@@ -90,6 +90,7 @@ public class QuestionListAdapter extends RecyclerView.Adapter<QuestionListAdapte
             public void onClick(View view) {
                 item.setEnabled(!item.isEnabled());
                 notifyItemChanged(position);
+                item.save();
             }
         });
     }