Merge pull request #161 from xelaz/master

Remove bluebird.defer

Author: manast

lib/acl.js

@@ -81,8 +81,6 @@ var Acl = function (backend, logger, options){
   @return {Promise} Promise resolved when finished
 */
 Acl.prototype.addUserRoles = function(userId, roles, cb){
-  var promise = bluebird.defer();
-
   contract(arguments)
     .params('string|number','string|array','function')
     .params('string|number','string|array')