Implemented ESlint and passed down the rules

api/models/api-token-model.js

@@ -1,4 +1,3 @@
-'use strict'
 const bookshelf = require('../database/bookshelf').bookshelf;
 
 require('./user-model');
@@ -9,6 +8,6 @@ let APIToken = bookshelf.Model.extend({
     user() {
         return this.belongsTo('User', 'user_uuid', 'uuid');
     }
-})
+});
 
 module.exports = bookshelf.model('APIToken', APIToken);