use active_admin gem
Add name to users
Change Administration menu design
Add role field to users
Add default value to users role field
Add user validations
fix 'this' to 'self' in user model(Inna this is not java :))
Change admin/user index, show and edit design
Add scopes and actins_items to admin/user
Add check_for_pass before action in admin/users
Administration: add link to user's reports in user show page
Administration: Edit reports index page
Administration: customize report show page and add filters
Administration: add filter to users page
Administration: add become method for users
Administration: send message to the user if post is altered
Refactoring send user notification
Add permissions to reports
Add dependent-destroy to assotiations
Administration: update and create report's permissions