message: Remove specific type of deliveredNotification (mac)
diff: [self.center scheduleNotification:notification];
  }
  +-(void)removeAllDeliveredNotificationsWithType:(NSString *) type {
  + for (NSUserNotification *notification in self.center.deliveredNotifications) {
  + if ([notification.userInfo objectForKey:type]) {
  + [self.center removeDeliveredNotification:notification];
  + }
  + }
  +}
  +
  -(void) scheduleReminderWithTitle:(NSString *) title informativeText:(NSString *) informativeText {
  NSUserNotification *notification = [self defaultUserNotificationWithTitle:title
  informativeText:informativeText];
  notification.otherButtonTitle = @"Close";
  // Delivery
  + [self removeAllDeliveredNotificationsWithType:@"reminder"];
  [self scheduleNotification:notification];
  // Remove reminder after 45 seconds
  notification.otherButtonTitle = @"Close";
  // Delivery
  + [self removeAllDeliveredNotificationsWithType:@"pomodoro"];
  [self scheduleNotification:notification];
  // Play sound
  notification.otherButtonTitle = @"Close";
  // Delivery
  + [self removeAllDeliveredNotificationsWithType:@"pomodoro_break"];
  [self scheduleNotification:notification];
  // Play sound
  };
  // Delivery
  + [self removeAllDeliveredNotificationsWithType:@"autotracker"];
  [self scheduleNotification:notification];
  }
  