Deleted method from MenuViewController:
	- (void) tableView:(UITableView *)tableView didSelectRowAtIndexPath: (NSIndexPath *)indexPath;
Added class WaiterMenuViewController.
Overrided methods in class WaiterMenuViewController:
	- (void) tableView: (UITableView *)tableView didSelectRowAtIndexPath: (NSIndexPath *)indexPath;
	- (void) prepareForSegue: (UIStoryboardSegue *)segue sender: (id)sender;
Added required method to protocol POrderItems:
	- (void) didAddedOrderItem: (MenuItemModel*)menuItem;
Merge remote-tracking branch 'origin/master'