Confirm new Sencha VC event handling still works

[brian428]

Ensure that the built-in Sencha VC event handling still works correctly when using the Deft JS VC.

[benquarmby]

This works for me in the alpha. Event listener blocks throughout the view hierarchy are tied to the Deft 5 VC.

If the listeners are at the top level (directly on the view class prototype) then an explicit 'controller' scope is required. Otherwise it expects to find handlers on the view:

listeners: {
    beforerender: 'onViewBeforeRender',
    scope: 'controller'
}

[brian428]

Right, all of the view event handling is now done by the underlying Sencha ViewController class.