from dev into testing (how to "merge" production_tests.sh from master into dev?!):
Finally found a way to use the controlled vocabulary in pytests without hardcoding them instead of getting them from the database itself. BUT: At several places, 'import toardb' had to be inserted (to avoid circular imports when importing only the controlled vocabulary) AND: pytest would only work when stationmeta.models_annotation imports generic.models (This seems to be related to the order in which tables are created.)
Deleted all '# coding: utf-8' lines from source code, since this is standard with python3.