add devise to the project
add log in and log out links
generate devise view templates
add cancan basic functionality
hide buttons if cannot access functionality
add nice error handling
add load_and_authorize_resource
add a bit more complex can-s and cannot-s
Merge branch 'user_management'
add relation between users and reports
add owner to all reports
fix an issue with the root path not accessible if not authenticated
restrict reports access
add better cancan management for reports