Removed usage of random-js

Replaced random-js with vanilla JS random

lib/key_generators/dictionary.js

@@ -1,8 +1,5 @@
-var rand = require('random-js');
 var fs = require('fs')
 var dictionary;
-var randomEngine = rand.engines.nativeMath;
-var random;
 
 var DictionaryGenerator = function(options) {
   //Options
@@ -20,7 +17,6 @@ var DictionaryGenerator = function(options) {
     for(var i = 0; i < this.dictionary.length; i++)
       this.dictionary[i] = this.dictionary[i].replace(/\W/g,'');
     
-    this.random = rand.integer(0, this.dictionary.length);
     });
 };
 
@@ -28,7 +24,7 @@ var DictionaryGenerator = function(options) {
 DictionaryGenerator.prototype.createKey = function(keyLength) {
   var text = '';
   for(var i = 0; i < keyLength; i++)
-    text += this.dictionary[random(randomEngine)];
+    text += this.dictionary[Math.floor(Math.random()*this.dictionary.length];
   return text;
 };