def asset_root
      File.expand_path(File.join(File.dirname(__FILE__),
                                 %w(.. .. ..),
                                 %w(assets aker form)))
    end
def asset_root
      File.expand_path(File.join(File.dirname(__FILE__),
                                 %w(.. .. ..),
                                 %w(assets aker form)))
    end
Where to look for HTML and CSS assets.

 This is currently hardcoded as `(aker gem root)/assets/aker/form`.

 @return [String] a directory path