bump version to 3.5.8

fixes #43 - PATCH requests with nested models do not have Partial wrapper

fixes #44 - TypeError: m.buffer is not a function

Author: Crhistian Ramirez

README.md

@@ -10,8 +10,8 @@ of your imagination.
 This SDK is automatically generated by the [Swagger Codegen](https://github.com/swagger-api/swagger-codegen) project:
 
 - API version: 1.0
-- Package version: 3.5.7
-- Build date: 2019-08-23T14:46:45.294-05:00
+- Package version: 3.5.8
+- Build date: 2019-09-17T09:30:51.049-05:00
 
 For more information, please visit [https://developer.ordercloud.io/documentation/](https://developer.ordercloud.io/documentation/getting-started/introduction-to-ordercloud)