[AC-1814] [ios]imageview image doesnt accept null or ''

var win = Ti.UI.createWindow({ backgroundColor: '#fff' });

var imageView = Titanium.UI.createImageView({
	image:'http://www.biography.com/imported/images/Biography/Images/Profiles/J/Steven-Jobs-9354805-2-402.jpg',
	width:261,
	height:178,
	top:20
});

imageView.addEventListener('load', function()
{
	Ti.API.info('LOAD CALLED');
});
win.add(imageView);

var l = Titanium.UI.createLabel({
	text:'Click Image',
	bottom:30,
	color:'#999',
	height:'auto',
	width:300,
	textAlign:'center'
});
win.add(l);

function clicker()
{
	var test = imageView.image;
	Ti.API.info(test);
	if (imageView.image && imageView.image !== '' && imageView.image !== null)
		imageView.image = '';
	else
		imageView.image = 'http://www.biography.com/imported/images/Biography/Images/Profiles/J/Steven-Jobs-9354805-2-402.jpg';
}

imageView.addEventListener('click', clicker);
win.open();