made jshint happy

lib/dao.js

 var Utils     = require("./utils")
   , Mixin     = require("./associations/mixin")
-  , DataTypes = require("./data-types")
   , Validator = require("validator")
 
 module.exports = (function() {
   var DAO = function(values, options) {
-    var self = this
-
     this.attributes = []
     this.validators = {} // holds validation settings for each attribute
     this.__factory = null // will be set in DAO.build
@@ -32,7 +29,7 @@ module.exports = (function() {
   Object.defineProperty(DAO.prototype, 'isDeleted', {
     get: function() {
       var result = this.__options.timestamps && this.__options.paranoid
-      result = result && this[this.__options.underscored ? 'deleted_at' : 'deletedAt'] != null
+      result = result && this[this.__options.underscored ? 'deleted_at' : 'deletedAt'] !== null
 
       return result
     }

lib/dialects/mysql/query.js

@@ -65,11 +65,11 @@ module.exports = (function() {
       , self   = this
 
     // add the inserted row id to the instance
-    if (this.callee && (this.sql.indexOf('INSERT INTO') == 0) && (results.hasOwnProperty('insertId'))) {
+    if (this.callee && (this.sql.indexOf('INSERT INTO') === 0) && (results.hasOwnProperty('insertId'))) {
       this.callee[this.callee.__factory.autoIncrementField] = results.insertId
     }
 
-    if (this.sql.indexOf('SELECT') == 0) {
+    if (this.sql.indexOf('SELECT') === 0) {
       // transform results into real model instances
       // return the first real model instance if options.plain is set (e.g. Model.find)
       if(this.options.raw) {