Two quick fixes in relation to #1028. ajaxSetup shouldn't be deep and the...

Two quick fixes in relation to #1028. ajaxSetup shouldn't be deep and the boolean arg should be used, not overwritten with 'true'.

src/ajax/ajax.js

@@ -434,7 +434,7 @@ jQuery.extend({
 	 * @cat Ajax
 	 */
 	ajaxSetup: function( settings ) {
-		jQuery.extend( true, jQuery.ajaxSettings, settings );
+		jQuery.extend( jQuery.ajaxSettings, settings );
 	},
 
 	ajaxSettings: {

src/jquery/jquery.js

@@ -1260,7 +1260,7 @@ jQuery.extend = jQuery.fn.extend = function() {
 
 	// Handle a deep copy situation
 	if ( target.constructor == Boolean ) {
-		deep = true;
+		deep = target;
 		target = arguments[1] || {};
 	}