[TIMOB-8754] iOS: Popover reorientation with Keyboard breaks layout

Problem

Reorienting a popover when a text field in it is focused results in the popover's layout distorting.

Evidence

See this bug in action in the 4 attached images, or in this YouTube video: http://www.youtube.com/watch?v=jVK8QjIlb8g

Reproduction

1. Use the following app.js. 2. Press "Show Popover" 3. Reorient several times. The popover properly hides and shows, displaying its content as it was specified in the JS. 4. Focus the search bar to bring up the keyboard. If you're in landscape, the popover will properly reduce its height to make room for the keyboard. 5. Reorient. If you're now in portrait, the popover's height will increase to its old value, but the content won't change its height. Or, if you're not in landscape, the table view will take up the entire height, and the search bar won't be visible at all.

var win = Ti.UI.createWindow();

var button = Ti.UI.createButton({
    title: 'Show Popover',
    height: 50, width: 300,
    top: 100
});
win.add(button);

button.addEventListener('click', function () {
    var popover = Ti.UI.iPad.createPopover({
        width: 200,
        height: 350,
        title: 'Table View',
        barColor: '#111'
    });

    popover.add(Ti.UI.createSearchBar({
        top: 0,
        height: 44
    }));
    popover.add(Ti.UI.createTableView({
        data: [
            { title: 'Option 1' },
            { title: 'Option 3' },
            { title: 'Option 2' }
        ],
        top: 44,
        bottom: 0
    }));

    popover.show({
        view: button,
        animated: true
    });
});

win.open();