fix some update errors

app/controllers/aaaas_controller.rb

@@ -15,7 +15,7 @@ class AaaasController < ApplicationController
   
   # override to use :mx_records instead of :records assoc
   def beginning_of_chain
-    nested_via_records? ? nested.parent_scope.aaaa_records : super
+    (nested_via_records? ? nested.parent_scope.aaaa_records : super).readonly(false)
   end
   
   # override, we make our own sti logic

app/controllers/as_controller.rb

@@ -15,7 +15,7 @@ class AsController < ApplicationController
   
   # override to use :mx_records instead of :records assoc
   def beginning_of_chain
-    nested_via_records? ? nested.parent_scope.a_records : super
+    (nested_via_records? ? nested.parent_scope.a_records : super).readonly(false)
   end
   
   # override, we make our own sti logic

app/controllers/cnames_controller.rb

@@ -16,7 +16,7 @@ class CnamesController < ApplicationController
   
   # override to use :mx_records instead of :records assoc
   def beginning_of_chain
-    nested_via_records? ? nested.parent_scope.cname_records : super
+    (nested_via_records? ? nested.parent_scope.cname_records : super).readonly(false)
   end
   
   # override, we make our own sti logic

app/controllers/domains_controller.rb

@@ -1,5 +1,4 @@
-class DomainsController < ApplicationController
-  
+class DomainsController < ApplicationController  
   active_scaffold :domain do |conf|
     conf.columns = [:name, :ip, :records, :soa_record, :ns_records]
     conf.list.columns = [:name, :records, :permissions]

app/controllers/mxes_controller.rb

@@ -23,7 +23,7 @@ class MxesController < ApplicationController
   
   # override to use :mx_records instead of :records assoc
   def beginning_of_chain
-    nested_via_records? ? nested.parent_scope.mx_records : super
+    (nested_via_records? ? nested.parent_scope.mx_records : super).readonly(false)
   end
   
   # override, we make our own sti logic

app/controllers/ns_controller.rb

@@ -15,7 +15,7 @@ class NsController < ApplicationController
   
   # override to use :mx_records instead of :records assoc
   def beginning_of_chain
-    nested_via_records? ? nested.parent_scope.ns_records : super
+    (nested_via_records? ? nested.parent_scope.ns_records : super).readonly(false)
   end
   
   # override, we make our own sti logic

app/controllers/srvs_controller.rb

@@ -20,7 +20,7 @@ class SrvsController < ApplicationController
   
   # override to use :mx_records instead of :records assoc
   def beginning_of_chain
-    nested_via_records? ? nested.parent_scope.srv_records : super
+    (nested_via_records? ? nested.parent_scope.srv_records : super).readonly(false)
   end
   
   # override, we make our own sti logic

app/controllers/txts_controller.rb

@@ -15,7 +15,7 @@ class TxtsController < ApplicationController
   
   # override to use :mx_records instead of :records assoc
   def beginning_of_chain
-    nested_via_records? ? nested.parent_scope.txt_records : super
+    (nested_via_records? ? nested.parent_scope.txt_records : super).readonly(false)
   end
   
   # override, we make our own sti logic