more user data in admin

app/views/admin/users/index.html.haml

@@ -13,15 +13,19 @@
       %table.table.table-striped.table-bordered.table-condensed
         %thead
           %tr
-            %th=sort_link [:office,@q], :email
+            %th=sort_link @q, :email
             %th Resume
             %th Application
+            %th=sort_link @q, :confirmed_at
+            %th=sort_link @q, :sign_in_count
         %tbody
           - @users.each do |user|
             %tr{:class => "line-#{cycle("1","2")}"}
               %td= link_to user.email , admin_user_path(user), :title => "#{user.street}\n#{user.city}\n#{user.country}"
               %td= link_to "#{user.resume.percent} %" , admin_resume_path(user.resume)
               %td= application_link(user)
+              %td= time_ago_in_words(user.confirmed_at.to_date)
+              %td= user.sign_in_count
     =paginate @users
   .col-md-3
     = search_form_for [:admin , @q], :html => { :class => "form-horizontal" }, :method => :get do |f|