修复由于没有关闭消息而导致授权不成功的情况

git-svn-id: https://plugins.svn.wordpress.org/wp2pcs/trunk@878731 b8457f37-d9ea-0310-8a92-e5e31aec5664
把Oauth Code移动到附件存储的位置

git-svn-id: https://plugins.svn.wordpress.org/wp2pcs/trunk@878732 b8457f37-d9ea-0310-8a92-e5e31aec5664