7 merge requests!319add all changes of dev into release v1.4.0 branch,!318Resolve "release v1.4.0",!283Merge latest develop into falcos issue,!279include Develop,!278Felix issue295 transformation parameters in data handler,!274Resolve "implement lazy data preprocessing",!259Draft: Resolve "WRF-Datahandler should inherit from SingleStationDatahandler"
