turn off serial rtscts, fix#27

feature: add shutdown logic, fix coordinator model, update logging

feature: log zigpy_cc version on startup

fix version update when release created

auto update version when release created

auto update version when release created

reconnect, auto port detection, bug fixes

Create pythonpublish.yml

Merge pull request #8 from puddly/cc26x2r1-fixes

CC26X2R1 support and misc setup.py fixes