code: function _createOptions(config) {
    return {
      filename:config.filename,
      displayErrors:true,
      timeout: config.timeout || 20*1000
    };
  }
docs: Given a config object create an options object for sandboxing operations.
  
  @private
  @param {Object} config   Config for this creation.
  @returns {Object}        Options for sandboxing operations.