fix bug in API w/ serializer on v6. query maybe an empty object

nodejs/node#6289
This pull request changes the query string to be an empty object rather
than an object inherited from Object.prototype. So it no longer has
the hasOwnProperty method

lib/api.js

@@ -20,6 +20,7 @@ var  Class           = require( './class' ) // this is Class
    , util            = require('util')
    , Boom            = require('boom')
    , isObject        = require('mout/lang/isObject')
+   , has             = require('mout/object/hasOwn')
    , debug           = require('debug')('tastypie:api')
    , Options         = require( './class/options' )
    , pkg         	 = require('../package.json')
@@ -119,7 +120,7 @@ Api = new Class( /** @lends module:NAME.Api.prototype */{
 
 					debug('requested format %s', format);
 
-					if( query.hasOwnProperty('callback') && !( query.hasOwnProperty('format') ) ){
+					if( has(query,'callback') && !( has(query, 'format') ) ){
 					  return reply.continue();
 					}