The code for handling Ajax timeouts was broken (the abort was being called too...

The code for handling Ajax timeouts was broken (the abort was being called too early). Fixing this allows the test suite to work again.

src/ajax.js

@@ -393,11 +393,12 @@ jQuery.extend({
 				setTimeout(function(){
 					// Check to see if the request is still happening
 					if ( xhr ) {
-						// Cancel the request
-						xhr.abort();
-
 						if( !requestDone )
 							onreadystatechange( "timeout" );
+
+						// Cancel the request
+						if ( xhr )
+							xhr.abort();
 					}
 				}, s.timeout);
 		}