Updated dictionary.js

  //Load dictionary

  fs.readFile(options.path, 'utf8', (err,data) => {

    if(err) throw err;

    this.dictionary = data.split(',');

    //Remove any non alpha-numeric characters

    for(var i = 0; i < this.dictionary.length; i++)

      this.dictionary[i] = this.dictionary[i].replace(/\W/g,'');

    this.dictionary = data.split(/[\n\r]+/);

  });

};

//Generates a dictionary-based key, of keyLength words

DictionaryGenerator.prototype.createKey = function(keyLength) {

  var text = '';

  for(var i = 0; i < keyLength; i++)

    text += this.dictionary[Math.floor(Math.random()*this.dictionary.length)];

  for(var i = 0; i < keyLength; i++) {

    var index =Math.floor(Math.random()*this.dictionary.length);

    text += this.dictionary[index];

  }

  return text;

};