Better responsive layout for Devise views.
Better responsive markup for the account confirmation view.
Changed text for the shared links in devise views.
Changed i18n spanish string.
Shared devise links are rendered with a <ul> with pretty icons for each <li>
Better responsive markup for the new password view.
Better responsive markup for the password edit view.
Better responsive markup for the new registration view.
Better responsive markup for the sign in view.
Better responsive markup for the new unlock view.
Removed redundant string from devise views.
Added sign up and sign in icons to landing page.
Changed spanish i18n strings.