[Windowing] Opens Url

Instead of displaying a dialog of
the url, the url is opened in a new
tab using the new window button.
WTD-16.

platform/commonUI/browse/src/windowing/NewWindowAction.js

@@ -42,7 +42,8 @@ define(
                  * Open the object in a new window (currently a stub)
                  */
                 perform: function () {
-                    $window.alert($window.location.href);
+                    var currentUrl = $window.location.href;
+                    window.open(currentUrl);
                 },
                 
                 getMetadata: function () {