add sessions helper
add remember token to db
add remember token to db
update the User model to support the remember token
fill the sessions helper
add sessions controller and routes
fill the signin page
fill the create action in the sessions controller
update the header navbar
add signout functionalities
add edit action and view to the Users controller
update the edit user link in the navbar
add the update action to the Users controller
update stylesheet
add some filter: a user can only edit her own info
add action and view to show all the users
amend readme
add 100 sample users, with the faker gem
add pagination to the index view and action
add the admin user and update the sample data in the db