docs: function listResources(plugins, resources) {
      return plugins.reduce(function(result, plugin) {
          var npmId           = plugin.getNpmID();
          var pluginResources = resources.get(plugin.getName());
  
          PLUGIN_RESOURCES.forEach(function(resourceType) {
              var assets = pluginResources.get(resourceType);
              if (!assets) return;
  
              var list = result.get(resourceType) || Immutable.List();
  
              assets = assets.map(function(assetFile) {
                  if (LocationUtils.isExternal(assetFile)) {
                      return {
                          url: assetFile
                      };
                  } else {
                      return {
                          path: LocationUtils.normalize(path.join(npmId, assetFile))
                      };
                  }
              });
  
              list = list.concat(assets);
              result = result.set(resourceType, list);
          });
  
          return result;
      }, Immutable.Map());
  }