Update project authors statements to Dartino

pkg/immi_samples/lib/ios/ImmiSamples/SlidingWindowPresenter.h

-// Copyright (c) 2015, the Fletch project authors. Please see the AUTHORS file
+// Copyright (c) 2015, the Dartino project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE.md file.
 
 #import <Foundation/Foundation.h>
 #import <UIKit/UIKit.h>
 
 #import "CellPresenter.h"
 
 @interface SlidingWindowPresenter
     : NSObject <UITableViewDataSource,
                 UITableViewDelegate,
                 SlidingWindowPresenter>
 
 // TODO(zarah): Move access of tableView to controller.
 - (id)initWithCellPresenter:(id<CellPresenter>)cellPresenter
                   tableView:(UITableView*)tableView;
 
 @end