Merge pull request #721 from cookejames/master

findByIds would fail when an array of 0 length was passed as its first argument

lib/dao.js

@@ -909,7 +909,7 @@ DataAccessObject.findByIds = function(ids, query, options, cb) {
   if (isPKMissing(this, cb)) {
     return cb.promise;
   } else if (ids.length === 0) {
-    process.nextTick(cb(null, []));
+    process.nextTick(function(){cb(null, []);});
     return cb.promise;
   }