Update issues submenu

With a new element and a new method to go to issue boards.

qa/qa/page/project/sub_menus/issues.rb

@@ -10,6 +10,7 @@ module QA
           def self.included(base)
             base.class_eval do
               view 'app/views/layouts/nav/sidebar/_project.html.haml' do
+                element :issue_boards_link
                 element :issues_item
                 element :labels_link
                 element :milestones_link
@@ -29,6 +30,14 @@ module QA
             end
           end
 
+          def go_to_boards
+            hover_issues do
+              within_submenu do
+                click_element(:issue_boards_link)
+              end
+            end
+          end
+
           def go_to_labels
             hover_issues do
               within_submenu do