adding the exit button to the menu

res/menu/main.xml

@@ -72,6 +72,7 @@
         android:icon="@drawable/navigation_forward"        
         android:orderInCategory="0"
         android:showAsAction="never"/>
+    <item android:id="@+id/menu_exit" android:orderInCategory="0" android:title="@string/menu_exit" android:showAsAction="never"></item>
     
     
     

res/values/strings.xml

@@ -28,6 +28,7 @@
         <item>Medium</item>
         <item>Large</item>
     </string-array>
+        <string name="menu_exit">Exit</string>
     
    
     

src/org/kiwix/kiwixmobile/KiwixMobileActivity.java

@@ -428,6 +428,9 @@ public class KiwixMobileActivity extends Activity {
                 startActivityForResult(i, PREFERENCES_REQUEST_CODE);
             	break;
 
+            case R.id.menu_exit:
+            	finish();
+            	break;
         }
         return super.onOptionsItemSelected(item);
     }