v0.3.0

• Write own "python" measurement to InfluxDB with the latest daily data point of a data set only.
• Adaptation to new data fields introduced by the city on 28.10.2020.
• Better mapping of incoming records to the respective reporting date.
• Update of the existing data set in InfluxDB, if several changes for the same reporting date come in from the public health department.
• Only the most recent dataset of a reporting day is written in InfluxDB measurement "dresden_official" for Grafana. The entire collection of data sets lands in "dresden_official_all".
• More detailed logging with the information whether a data record for a new reporting day or an update of an existing reporting day has been published.
• License for the data was clarified by the city of Dresden on my request and is now noted in the repo.
• Data sets since 18.10.2020 have now been published and added as a submodule to this repo.