Devise views converted to haml.
Some spaces deleted.
Little styling applied to login form.
Added login dropdown to navbar.
Added controller and views for news.
Changed homepage for not authenticated user to news#index.
Fixed problem with sign_in form in navbar: now it works anywhere, not only with user view.
Devise layout is set by default for all pages when user not authenticated.
Broken tests fixed.
Hardcoded link to 'password recovery' into session form.
Authorization changed to ajax, added waiting indicator and error message displaying.