Fix missing allowedFormat constant

Author: BrunnerLivio

package.json

@@ -1,6 +1,6 @@
 {
   "name": "pokemongo-game-master",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "description": "Collection of the decoded GAME_MASTER-protobuf files",
   "main": "src/index.js",
   "scripts": {

src/index.js

@@ -1,6 +1,7 @@
 const request = require('request');
 
 const FETCH_URL = 'https://raw.githubusercontent.com/BrunnerLivio/pokemongo-game-master/master/versions';
+const allowedFormats = ['protobuf', 'json'];
 
 /**
  * Returns the content of the request version