Patch node.remove to fix single box widget destructor

gistfile1.txt

        testSingleBoxDestroy: function() {

            (function(origRemove) {
                Y.Node.prototype.remove = function() {
                    if (this._node) {
                        origRemove.apply(this, arguments);
                    }
                }
            })(Y.Node.prototype.remove);

            function MyWidget() {
                MyWidget.superclass.constructor.apply(this, arguments);
            };
            MyWidget.NAME = "myWidget";

            Y.extend(MyWidget, Y.Widget, {
                CONTENT_TEMPLATE:null
            });

            var w = new MyWidget();

            try {
                w.destroy();
            } catch(e) {
                Y.Assert.fail("w.destroy() on a single box widget threw an exception" + e);
            }
        },