Ported the session_store.rb generation task from trunk.

Loosely based on r2493 but adapted for Rails 2.1.2.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/0.8-stable@3054 e93f8b46-1217-0410-a6f0-8f06a7374b81

doc/INSTALL

@@ -30,7 +30,10 @@ Optional:
    rake db:migrate RAILS_ENV="production"
    It will create tables and an administrator account.
 
-5. Setting up permissions
+5. Generate a session store secret. Run:
+   rake config/initializers/session_store.rb
+
+6. Setting up permissions
    The user who runs Redmine must have write permission on the following
    subdirectories: files, log, tmp (create the last one if not present).
 
@@ -39,13 +42,13 @@ Optional:
      sudo chown -R redmine:redmine files log tmp
      sudo chmod -R 755 files log tmp
 
-6. Test the installation by running WEBrick web server:
+7. Test the installation by running WEBrick web server:
    ruby script/server -e production   
   
    Once WEBrick has started, point your browser to http://localhost:3000/
    You should now see the application welcome page
 
-7. Use default administrator account to log in:
+8. Use default administrator account to log in:
    login: admin
    password: admin