Fix bug on get_auth

Fix bug on get_auth

Add high-level API

Add high-level API and fix some bugs

v1.4.0

support versioning, logging, restore object, delete objects, chunk upload and fixes some bugs.

v1.3.2

support interface upload_file to upload

Python SDK V3

V3 normalnizes Long Bucket Name, Secret_id and Secret_key

Python SDK V3

support versioning, replication, copy and long bucket name

Python SDK V2

Python SDK V2