[TIMOB-16647] BlackBerry: Webview 'load' event callback object does not have the url property

Description of the problem

The load event callback object for a WebView does not have the url property. This is needed for example for oAuth login, as you need to retrieve the URL after a redirect.

Steps to reproduce

1. Create a page with a redirect (e.g. 302) 2. Use the following code:

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

var webview = Ti.UI.createWebView({
	url : 'SOMEPAGE'
});

webview.addEventListener('load', function(e){
	alert(JSON.stringify(e));	
});
win.add(webview);

win.open();

Result

The WebView redirects, but when 'load' is called, there is no url property.