Fixed io:xdrReady event dispatch in io-xdr.js and io.as.

Changed statusText value to event.type as there is no text property on target in IOErrorEvent.

Source for implementing 2530370, 2529447, 2529314, 2530373.

Delete headers and data fields in configuration object to avoid serialisation issues through ExternalInterface from within Flash.

Remove Security.allowDomain setting from io.as, io.swf. Reverts back to the version introduced in YUI 3.0.0.

Fixed 2528550.

Add allowDomain wildcard to io.swf to allow symmetrical ExternalInterface communication when the swf is loaded from a remote host/domain.

Native XDR transactions now fallback to io.swf(Flash transport) if the browser cannot initiate such a require and throws an exception. Serialised form data can now be sent in XDR transactions -- Fixes 2528167.

Added native XDR support, XML response for XDR transactions, and dependency optimizations.

Fixed incompatible ExternalInterface method assignment affecting IE6 and IE7.

Replace Y.clone with _replace, to create a response object for timeout and abort outcomes. XHR properties are not enumerable, so using Y.clone or Y.merge will not produce a usable object.

Matched .abort and .isInProgress methods for XDR transactions.

Updated XDR transport to use new transaction termination event flow.

Restructured source files and directory structure for YUI3.