Merge pull request #656 from echong/master

Fixing a bug in query generation where 'identifier' is being stored as the raw value of the 'id' rather than being wrapped in an object.

lib/dao.js

@@ -158,7 +158,7 @@ module.exports = (function() {
     else if (this.isNewRecord) {
       return this.QueryInterface.insert(this, this.QueryInterface.QueryGenerator.addSchema(this.__factory), values)
     } else {
-      var identifier = this.__options.hasPrimaryKeys ? this.primaryKeyValues : this.id;
+      var identifier = this.__options.hasPrimaryKeys ? this.primaryKeyValues : { id: this.id };
 
       if (identifier === null && this.__options.whereCollection !== null) {
         identifier = this.__options.whereCollection;