Add the project_id to board URLs in the menu to generate valid URLs

lib/redmine.rb

@@ -345,7 +345,7 @@ Redmine::MenuManager.map :project_menu do |menu|
                 project.boards.collect do |board|
                   Redmine::MenuManager::MenuItem.new(
                                                      "board-#{board.id}".to_sym,
-                                                     { :controller => 'boards', :action => 'show', :id => board },
+                                                     { :controller => 'boards', :action => 'show', :project_id => project, :id => board },
                                                      {
                                                        :caption => board.name # is h() in menu_helper.rb
                                                      })