Maintenance release

Version bump to 0.13.0

This is a maintenance release

Improve compatibility with Python 3

This is a maintenance release for closing an issue with imports for Python 3, thanks to Wellington Castello for his PR.

It fixes #8

Maintenance release

• Fix bug when importing USER_AGENT

Add support for results API

This was done by @ryan-mccabe ! thanks!

Add silenced api

• Add some basic use of the Silence API
• Filter subs by node list

0.8.0

• Added operations for Aggregates and Status (Health/Info)
• Added support for optional limit/offset parameters to get_clients
• Modified post_check_request to work properly with subscribers.