def load_paths
      paths.each do |path|
        full_path = path
        full_path = File.join(directory, path) unless directory.nil?
        sprockets.append_path full_path
      end
      self
    end
def load_paths
      paths.each do |path|
        full_path = path
        full_path = File.join(directory, path) unless directory.nil?
        sprockets.append_path full_path
      end
      self
    end
Load paths into the sprockets environment.
 Values are loaded from {#paths}.