Merged Rails 2.0 compatibility changes.

Compatibility with Rails 1.2 is preserved.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@975 e93f8b46-1217-0410-a6f0-8f06a7374b81

config/environment.rb

@@ -23,6 +23,7 @@ Rails::Initializer.run do |config|
   # Use the database for sessions instead of the file system
   # (create the session table with 'rake create_sessions_table')
   # config.action_controller.session_store = :active_record_store
+  config.action_controller.session_store = :PStore
 
   # Enable page/fragment caching by setting a file-based store
   # (remember to create the caching directory and make it readable to the application)