Added helper methods logged_in? and current_user
Had to change the name of column to password_digest
Schema
Added show view to make sure DB save was working
Added new and create methods, as well as user_params
Fleshed out sign up page
Added Sessions controller
Added tests for Sessions controller and helper
Added assets for sessions controller
Added helper for sessions
Added login page
Added a top bar for when the user is logged in
Added the top bar to the Index page