…trings for namespaced models, as requested at issue #555.
…th the Wrapper API
In most official-looking places, the gem is refered to as "SimpleForm", rather than "simple form", "Simple Form" or "simple_form". When we're talking about the gem, use "SimpleForm". In code, keep "simple_form". Eliminate all instances of "simple form" except when capitalized in deprecation messages.
Rails 3.2 deprecated the Rails plugins. So we have to use gems.