View class keep the data used at the latest rendering

When rendering a View of the multilayer, the value set in the controller does not reach the end of the rendering process.
If you pass the value of the lower layer to the View, We have to verbose description as the second argument of View::forge.
Or, there is also a hack like the following.

```php
<body>
   <div id="container">
       <?php echo View::forge('next/view', $__data) ?>
   </div>
</body>
```

But I do not think that the way is correct.
It is because malfunction will be caused if ```'__data'``` is set to View. ..and more reasons.

This change enables the following.
```php
<body>
   <div id="container">
       <?php echo View::forge('next/view', true) ?>
   </div>
</body>
```