proposed dsl customizations of merb-admin

config.rb

# configure via dsl
user_admin = MerbAdmin::ModelConfig.configure(User) do
  
  display_name "Users"
  
  search_fields "name", "description"

  radio_field :name, :style => :vertical
  
  after :update do
    puts "Called after saving the model"
  end  
end

# more config
user_admin.before :create do 
  puts "Called before creation of the model"
end