[TIMOB-4321] HTTP Requests throws null pointer exception

If you attempt to open a HTTP connection using the HttpClient, a null pointer exception is thrown if you do not have the protocol http or https specificied in the url. Although not specifying the protocol is bad, it shouldn't throw out a null pointer exception. The issue is in the TiHTTPClient class with the following method signature: private static Uri getCleanUri(String uri). The encodedAuthority String object can be null but is not checked before doing the indexOf operation on which throws an exception. Example Code:

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

window.open();

var xhr = Ti.Network.createHTTPClient();
xhr.validatesSecureCertificate = true;

xhr.onerror = function(e){
    alert(e.error);
};
xhr.onload = function(e){
    alert(this.responseText);

}

xhr.open('GET', 'google.com');
xhr.send();

Helpdesk Ticket: http://support.appcelerator.com/tickets/APP-946174/homepage