Merge pull request w7corp#80 from 0i/2.0

Wechat Payment

微信返回的JSON不合法...

Fixes w7corp#34

添加菜单查询接口

Merge branch '2.0' of github.com:overtrue/wechat into 2.0

减少缓存过期时间

Merge branch '2.0' of github.com:overtrue/wechat into 2.0

xml读取bugfix

Merge branch '2.0' of github.com:overtrue/wechat into 2.0

Merge pull request w7corp#59 from acgrid/2.0

Fix request method for User::batchGet(), should be POST with JSON.