link to gatekeeper console from admin box; link to wiki doc from gatekeeper console

Author: laurelfan

dashboard/app/views/dynamic_config/gatekeeper_show.html.haml

@@ -48,6 +48,10 @@
     }
   }
 
+%p
+  Documentation:
+  = link_to 'http://wiki.code.org/display/PROD/Gatekeeper'
+
 .features
   .feature-list
     %h3 Features

dashboard/app/views/home/_admin.html.haml

@@ -5,6 +5,7 @@
       %ul
         %li= link_to 'Assume Identity', assume_identity_form_path
         %li= link_to 'Reset Password', new_user_password_path
+    %li= link_to 'Gatekeeper', gatekeeper_show_path
     %li= link_to 'Grant Permissions/Privileges', CDO.code_org_url('/private/privileges')
     %li= link_to 'Videos', videos_path
     %li= link_to 'Recent Activity', all_usage_path