fronted open switch and backend openness

app/models/site.rb

@@ -11,6 +11,10 @@ class Site
   field :roaming_id
   field :private_key, :type => Binary
   field :public_key, :type => Binary
+
+  field :frontend_closed, :type => Boolean, :default => false
+  field :backend_openness_on, :type => Boolean, :default => false
+
   field :title_always_on, :type => Boolean, :default => false
   field :dashbroad_allow_visitor, :type => Boolean, :default => false
   field :mail_settings, :type => Hash