v2.0.5

兼容更高版本的guzzle

add okex rest-api-market-data-get-exchange-rate

https://www.okx.com/docs-v5/en/#rest-api-market-data-get-exchange-rate

v2.0.3

Repair coinbase api authentication problem.
修复coinbase api身份验证问题。

v2.0.2

Add the websocket function of the public part of coinbase.
增加coinbase公共部分的websocket功能

v2.0.1

Update the way of using websocket.
更新websocket的使用方式。

v1.6.5

Fix the problem that the time in the http header of okex is not updated during verification;
修复okex在验签时http头里时间没有更新的问题

v1.6.4

okex websocket private channel

v1.6.3

proxy http request

v1.6.2

Modify some method parameters of Huobi
修改火币某些方法参数问题

v1.6.1

增加测试;
解决环境冲突