- Added sfDoctrineGuardPlugin plugin by executing the command:
  `php symfony plugin:install sfDoctrineGuardPlugin` according to
  `Day 13: The User` available at
  http://symfony.com/legacy/doc/jobeet/1_4/en/13?orm=Doctrine
- Added history of the last three viewed jobs in the frontend
- Integrated sfDoctrineGuard with the backend securing the access
  to administration panel
- Rebuilded model, because of adding authentication plugin

  All changes made according to `Day 13: The User` available at
  http://symfony.com/legacy/doc/jobeet/1_4/en/13?orm=Doctrine