https://github.com/andyhu/node-transliteration用法:
var transliteration = require('transliteration');
transliteration.transliterate('你好,世界'); // Ni Hao ,Shi Jie
transliteration.slugify('你好,世界'); // ni-hao-shi-jie
transliteration.slugify('你好,世界', {lowercase: false, separator: '_'}); // Ni_Hao_Shi_Jie