Instiki 0.16.5

Update to Rails 2.3.2 (the stable Rails 2.3 release).
Add audio/speex support
Update CHANGELOG
Bump version number

vendor/rails/actionpack/test/controller/fake_models.rb

@@ -9,3 +9,11 @@ end
 
 class GoodCustomer < Customer
 end
+
+module Quiz
+  class Question < Struct.new(:name, :id)
+    def to_param
+      id.to_s
+    end
+  end
+end