Implemented ESlint and passed down the rules

api/models/school-model.js

@@ -1,17 +1,16 @@
-'use strict'
-const bookshelf = require('../database/bookshelf').bookshelf
+const bookshelf = require('../database/bookshelf').bookshelf;
 
-require('./spell-model')
-require('./meta-school-model')
+require('./spell-model');
+require('./meta-school-model');
 
 let School = bookshelf.Model.extend({
     tableName: 'school',
     spells() {
-        return this.belongsToMany('Spell', 'spell_school')
+        return this.belongsToMany('Spell', 'spell_school');
     },
     meta_schools() {
-        return this.belongsTo('MetaSchool', 'meta_school_id')
+        return this.belongsTo('MetaSchool', 'meta_school_id');
     }
-})
+});
 
-module.exports = bookshelf.model('School', School)
+module.exports = bookshelf.model('School', School);