Galin Wu

Incorrect weight copy in feature expanding while increasing tag size

1

In https://github.com/lancopku/pkuseg-python/blob/d581c95e3ddec3f236ebe74fd626b6e1cfe112ee/pkuseg/model.py#L25 While increasing `n_tag` such copy neglects the spacing, and simply put original weights at the ending side. This is inconsistent to the addressing method in `_get_tag_tag_feature_id`.

* fix translating flaw

Support off-shore API node like below: ```` https://apihk.mch.weixin.qq.com/pay/orderquery （建议接入点：东南亚） https://apius.mch.weixin.qq.com/pay/orderquery （建议接入点：其它） https://api.mch.weixin.qq.com/pay/orderquery （建议接入点：中国国内） ````

WeChat have migrate `group` into `tags` for UserInfo.

Whose `.verify()` is still not implemented yet.