wrap_parameters.rb in rails_amp-0.1.5

- old
+ new

@@ -3,10 +3,10 @@
 # This file contains settings for ActionController::ParamsWrapper which
 # is enabled by default.
 
 # Enable parameter wrapping for JSON. You can disable this by setting :format to an empty array.
 ActiveSupport.on_load(:action_controller) do
-  wrap_parameters format: [:json]
+  wrap_parameters format: [:json] if respond_to?(:wrap_parameters)
 end
 
 # To enable root element in JSON for ActiveRecord objects.
 # ActiveSupport.on_load(:active_record) do
 #   self.include_root_in_json = true