def matching(type, list)
      list.map do |plugin|
        (plugins_map(type) || {})[string2class(plugin)]
      end
    end
def matching(type, list)
      list.map do |plugin|
        (plugins_map(type) || {})[string2class(plugin)]
      end
    end
Map array of names to available plugins.

 @param type [String] name of type to search for plugins
 @param list [Array]  list of plugin names to load
 @return     [Array]  list of loaded plugins