Fix for not responsive home screen widget

If the app is killed the widget doesn't receive updates
and it keeps the old value of the editor.
Pressing f.e. cursor buttons in such case
has not effect as real editor is empty and no
"editor change" events are triggered, thus,
widget is not updated.

To solve the issue let's just update the widget
any time its buttons are pressed.

android-app/src/main/java/org/solovyev/android/calculator/CalculatorApplication.java

@@ -97,9 +97,6 @@ public class CalculatorApplication extends android.app.Application implements Sh
 	@Nonnull
 	protected final Handler uiHandler = new Handler();
 
-	@Nonnull
-	private final CalculatorBroadcaster broadcaster = new CalculatorBroadcaster(this);
-
 	@Nonnull
 	private final Wizards wizards = new CalculatorWizards(this);
 
@@ -194,7 +191,7 @@ public class CalculatorApplication extends android.app.Application implements Sh
 			calculator.addCalculatorEventListener(listener);
 		}
 
-		calculator.addCalculatorEventListener(broadcaster);
+		calculator.addCalculatorEventListener(App.getBroadcaster());
 
 		Locator.getInstance().getCalculator().init();