[TIMOB-2508] iPhone animation resets to center on each execution

The following animation technique is broken in the current 1.5 continuous builds. Verified on iOS. http://developer.appcelerator.com/question/86311/ios---sdk-150---imageview-resets-to-center-before-animating"> Community question Attached movie showing behavior:

Titanium.UI.setBackgroundColor('#000');

var win = Titanium.UI.createWindow({  
    title:'Window',
    backgroundColor:'#fff',
    backButtonName:'Back'
});

var imageView=Ti.UI.createImageView({
    image:'default_app_logo.png',
    zIndex:1
});

var moveImageOneSecButton=Ti.UI.createButton({
    title:'Move: Duration 1 Sec',
    top: 10,
    width:200,
    height:40,
    zIndex:2
});

moveImageOneSecButton.addEventListener('click', function(){
        var newX=imageView.center.x + 10;
        var newY=imageView.center.y + 10;
        imageView.animate({
            center: {
                x: newX,
                y: newY
            },
            duration: 1000
        });
        imageView.center.x=newX;
        imageView.center.y=newY;
});

var moveImageOneMilliButton=Ti.UI.createButton({
    title:'Move: Duration 1 millisec',
    top: 60,
    width:200,
    height:40,
    zIndex:2
});

moveImageOneMilliButton.addEventListener('click', function(){
        var newX=imageView.center.x + 10;
        var newY=imageView.center.y + 10;
        imageView.animate({
            center: {
                x: newX,
                y: newY
            },
            duration: 1
        });

});

var resetImageButton=Ti.UI.createButton({
    title:'Reset Image',
    top: 110,
    width:200,
    height:40,
    zIndex:2
});

resetImageButton.addEventListener('click', function(){
        var newX=win.center.x;
        var newY=win.center.y;
        imageView.animate({
            center: {
                x: newX,
                y: newY
            },
            duration: 1
        });

});

win.add(imageView);
win.add(moveImageOneSecButton);
win.add(moveImageOneMilliButton);
win.add(resetImageButton);

win.open();