refactored event emitter usage in sync function

lib/sequelize.js

@@ -85,17 +85,17 @@ module.exports = (function() {
       options = Sequelize.Utils.merge(options, this.options.sync)
       options = Sequelize.Utils.merge(options, this.options.sync)
 
 
     var self = this
     var self = this
-    var eventEmitter = new Utils.CustomEventEmitter(function() {
+
+    return new Utils.CustomEventEmitter(function(emitter) {
       var chainer = new Utils.QueryChainer
       var chainer = new Utils.QueryChainer
 
 
       self.modelManager.models.forEach(function(model) { chainer.add(model.sync(options)) })
       self.modelManager.models.forEach(function(model) { chainer.add(model.sync(options)) })
 
 
       chainer
       chainer
         .run()
         .run()
-        .success(function() { eventEmitter.emit('success', null) })
-        .error(function(err) { eventEmitter.emit('failure', err) })
-    })
-    return eventEmitter.run()
+        .success(function() { emitter.emit('success', null) })
+        .error(function(err) { emitter.emit('failure', err) })
+    }).run()
   }
   }
 
 
   Sequelize.prototype.drop = function() {
   Sequelize.prototype.drop = function() {