Revert r6104 "Merged r6098 from trunk."

I messed things up with a cherry-pick on master, I'll re-apply it after.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/1.2-stable@6105 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/tasks/initializers.rake

@@ -1,7 +1,7 @@
 desc 'Generates a configuration file for cookie store sessions.'
 
 file 'config/initializers/session_store.rb' do
-  path = File.join(Rails.root, 'config', 'initializers', 'session_store.rb')
+  path = File.join(RAILS_ROOT, 'config', 'initializers', 'session_store.rb')
   secret = ActiveSupport::SecureRandom.hex(40)
   File.open(path, 'w') do |f|
     f.write <<"EOF"