Moved around_transition out of protected block

cherry-pick commit from
pluginaweek#275
so it will work with rails 4.1.

Author: awsmsrc

lib/state_machine/integrations/active_model.rb

@@ -397,6 +397,11 @@ def reset(object)
         object.errors.clear if supports_validations?
       end
 
+      # Runs state events around the object's validation process
+      def around_validation(object)
+        object.class.state_machines.transitions(object, action, :after => false).perform { yield }
+      end
+      
       protected
         # Whether observers are supported in the integration.  Only true if
         # ActiveModel::Observer is available.
@@ -509,11 +514,6 @@ def define_validation_hook
           owner_class.set_callback(:validation, :around, self, :prepend => true)
         end
 
-        # Runs state events around the object's validation process
-        def around_validation(object)
-          object.class.state_machines.transitions(object, action, :after => false).perform { yield }
-        end
-        
         # Creates a new callback in the callback chain, always inserting it
         # before the default Observer callbacks that were created after
         # initialization.