Updated stats and privacy

app/views/macs/index.html.erb

@@ -1,3 +1,4 @@
+<% if can? :read_details, Mac %>
 <% if @mac_time_start_date.present? %>
 <b>Most Active Machine Last <%= distance_of_time_in_words DateTime.now, @mac_time_start_date %>:</b>
   <span title="<%= @most_active_mac.mac %><%= "  -  "+@most_active_mac.ip.to_s if can? :read_details, @most_active_mac %>">
@@ -13,6 +14,7 @@
     - <%= (@runner_up.last[:time] / 1.hour).round %> hrs
   </span>
 <% end %>
+<% end %>
 
 <h2>What machines are on our network?</h2>
 <%= link_to "New MAC registration", new_mac_path if can? :create, Mac %>
@@ -31,6 +33,10 @@ Rails.logger.info mac.inspect %>
 <% end %>
 </ul>
 
+<% unless can? :read_details, Mac %>
+<p>To see more or register your own, login!</p>
+<% end %>
+
 <% if can? :read_details, Mac %>
 <ul class="mac_list hidden">
 <% @hidden_macs.each do |mac| %>