[Browse] Fixed clicking on menu

Previously any click on the context menu would
close the context menu rather than doing the
appropriate action. This is now fixed. The menu
only closes when a click happens not on the
menu. #33.

platform/representation/src/actions/ContextMenuAction.js

@@ -92,7 +92,12 @@ define(
 
                 // Add the menu to the body
                 body.append(menu);
-
+                
+                // Stop propagation so that clicks on the menu do not close the menu
+                menu.on('mousedown', function (event) {
+                    event.stopPropagation();
+                });
+                
                 // Dismiss the menu when body is clicked elsewhere
                 // ('mousedown' because 'click' breaks left-click context menus)
                 body.on('mousedown', dismiss);