QtDeclarative keyinteraction example mouse support does not work (with fix)

keyinteraction example will throw an error when clicking on items of the listview/gridview:

file:///Users/.../declarative/keyinteraction.orig/focus/Core/GridMenu.qml:89: TypeError: Result of expression 'GridView.view' [null] is not an object.

The attached property ListView.view is addressed incorrectly.

The attached patch makes the example work.