Add breadcrumb nav for the forums (#892).

git-svn-id: http://redmine.rubyforge.org/svn/trunk@1299 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/helpers/application_helper.rb

@@ -156,6 +156,10 @@ module ApplicationHelper
     links.size > 1 ? l(:label_display_per_page, links.join(', ')) : nil
   end
   
+  def breadcrumb(*args)
+    content_tag('p', args.join(' » ') + ' » ', :class => 'breadcrumb')
+  end
+  
   def html_title(*args)
     if args.empty?
       title = []