Drop all Devise's modules except trackable and omniauthable
Remove Device's custom templates
Add Logout link
Change notice and url for sign out redirection
Change flash message types for Omniauth
Remove the sessions controller
Refactor a template
Redesign the login page
Mark not own picture for admin accounts
Redesign the profile page
Use @import to import sass files
Get the footer to be sticky
Change stylesheet extensions from .css.scss to just .scss
Add the clrs gem