keep custom context menu items in the users window when the window is...

keep custom context menu items in the users window when the window is minimized or maximized; translate the context menu items when the localization is changed

bigbluebutton-client/src/org/bigbluebutton/modules/users/views/UsersWindow.mxml

@@ -144,14 +144,13 @@
 			}
 			
 			private function addContextMenuItems():void {
-				var contextMenu:ContextMenu = new ContextMenu();
-				contextMenu.hideBuiltInItems();
+				var contextMenuItems:Array = new Array();
 				
 				var exportUsersItem:ContextMenuItem = new ContextMenuItem(ResourceUtil.getInstance().getString("bbb.users.usersGrid.contextmenu.exportusers"));
 				exportUsersItem.addEventListener(ContextMenuEvent.MENU_ITEM_SELECT, exportUsersItemHandler);
-				contextMenu.customItems.push(exportUsersItem);
+				contextMenuItems.push(exportUsersItem);
 				
-				this.contextMenu = contextMenu;
+				this.customContextMenuItems = contextMenuItems;
 			}
 			
 			private function exportUsersItemHandler(e:ContextMenuEvent):void{
@@ -387,6 +386,8 @@
 						raiseHandBtn.accessibilityName = ResourceUtil.getInstance().getString('bbb.users.raiseHandBtn.toolTip');
 					}
 				}
+				
+				addContextMenuItems();
 			}
 			
 			private function loadKeyCombos(modifier:String):void {