Tags: ARM-TECH/lib60870

- updated documentation for release 2.3.0

- updated version number to 2.2.1

- updated CHANGELOG

- increased version to 2.1.1

- CS 104 connection: set state variables in connect function to addre…

…ss problem (#34)

- updated CHANGELOG

Merge branch 'master' of https://github.com/mz-automation/lib60870

release 0.9.4