v0.3.0 - TLS and Python3 support
- minimum version is now python 3.6 and dropped Python2 support
- update string formatting to python 3.6 notation
- moved to newer version of fritzconnection library
- add TLS support for FritzBox connection
- add TLS support for InfluxDB connection
- add timeout for fritzbox connection
- add interval option to config
- enhanced debugging output