Makes public and admin project lists work as expected.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/work@2158 e93f8b46-1217-0410-a6f0-8f06a7374b81

nested_projects/app/helpers/admin_helper.rb

@@ -20,4 +20,12 @@ module AdminHelper
     options_for_select([[l(:label_all), ''], 
                         [l(:status_active), 1]], selected)
   end
+  
+  def css_project_classes(project)
+    s = 'project'
+    s << ' root' if project.root?
+    s << ' child' if project.child?
+    s << (project.leaf? ? ' leaf' : ' parent')
+    s
+  end
 end