More Convention, Less Configuration

[msheakoski]

In the README usage example, why have serialize :data, ActiveRecord::Coders::Hstore as the standard way of using the gem? It makes working with the gem more cumbersome and error-prone because you need to remember to set a {} before using the attr or you get an error.

In my opinion, serialize :data, ActiveRecord::Coders::Hstore.new should be the default usage, which uses a default value of {} or HashWithIndifferentAccess.new unless something different is specified in the constructor. What are your thoughts?