Creates a new instance of sandbox from the options that have been provided
@param {Object=} [options]
@param {Function} callback
function (options, callback) {
        if (_.isFunction(options) && !callback) {
            callback = options;
            options = {};
        }

        options = _.clone(options);
        bootcode(function (err, code) {
            if (err) { return callback(err); }
            if (!code) { return callback(new Error('sandbox: bootcode missing!')); }

            options.bootCode = code; // assign the code in options
            PostmanSandbox.create(options, callback);
        });
    }