[TIMOB-16781] BlackBerry: TiUIWebview does not return evalJS data

<Alloy>
	<Window>
	<WebView top="150" id="webContent" width="300px" height="300px" borderColor="red" 
        borderWidth="2px" url="http://www.google.com"></WebView>
	</Window>
</Alloy>

function checkState(e) {
	var webTitle = $.webContent.evalJS('document.title');
	$.webContent.evalJS("alert(document.title)");
	alert(webTitle);
}
$.webContent.addEventListener('load', checkState);
$.index.open();