fix new tab link

app/coffee/modules/base/navurls.coffee

@@ -70,18 +70,29 @@ NavigationUrlsDirective = ($navurls, $auth, $q, $location) ->
             return [name, options]
 
     link = ($scope, $el, $attrs) ->
-        $el.on "click", (event) ->
-            event.preventDefault()
-
         parseNav($attrs.tgNav, $scope).then (result) ->
             [name, options] = result
             user = $auth.getUser()
             options.user = user.username if user
 
             url = $navurls.resolve(name)
-
             fullUrl = $navurls.formatUrl(url, options)
+
+            $el.data("fullUrl", fullUrl)
+
+            if $el.is("a")
+                $el.attr("href", fullUrl)
+
+        $el.on "click", (event) ->
+            event.preventDefault()
+
+            fullUrl = $(event.currentTarget).data('fullUrl')
+
+            if event.which != 2
                 $location.url(fullUrl)
+                $scope.$apply()
+            else
+                window.open fullUrl
 
         $scope.$on "$destroy", ->
             $el.off()

app/coffee/modules/nav.coffee

@@ -105,7 +105,7 @@ ProjectMenuDirective = ($log, $compile, $auth, $rootscope, $tgAuth, $location) -
             </a>
         </li>
         <% if (project.is_backlog_activated && project.my_permissions.indexOf("view_us") != -1) { %>
-        <li id="nav-backlog" tg-nav="project-backlog:project=project.slug">
+        <li id="nav-backlog">
             <a href="" title="Backlog" tg-nav="project-backlog:project=project.slug">
                 <span class="icon icon-backlog"></span>
                 <span class="item">Backlog</span>