updated redirection to the help main index (recognition fails when redirecting to a directory)

git-svn-id: http://redmine.rubyforge.org/svn/trunk@138 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/help_controller.rb

@@ -36,7 +36,7 @@ class HelpController < ApplicationController
     if template
       redirect_to "/manual/#{lang}/#{template}"
     else
-      redirect_to "/manual/#{lang}/"
+      redirect_to "/manual/#{lang}/index.html"
     end
   end