Unsupported windows-1251 encoding


```
return bindings.fromXml(string, options || {});
                    ^

Error: Unsupported encoding windows-1251

    at Object.module.exports.fromXml (C:\Users\User\node_modules\libxmljs\lib\document.js:168:21)
    at C:\Users\User\node_modules\node-fb2\lib\parser.js:27:25
    at tryToString (fs.js:513:3)
    at FSReqWrap.readFileAfterClose [as oncomplete] (fs.js:501:12)```