# File sprout/lib/sprout/project_model.rb, line 247
    def method_missing(method_name, *args)
      method_name = method_name.to_s
      if method_name =~ /=$/
        super if args.size > 1
        self[method_name[0...-1]] = args[0]
      else
        super unless has_key?(method_name) and args.empty?
        self[method_name]
      end
    end