app/views/shared/_navigation.html.haml
#nav-bar
%ul
%li.apps{:class => active_if_here(:apps)}= link_to t('.apps'), apps_path
%li.errs{:class => active_if_here(:problems)}= link_to t('.errors'), problems_path
- if user_signed_in? && current_user.admin?
%li.users{:class => active_if_here(:users)}= link_to t('.users'), users_path
%div.clear