components.CoReg_local.COREG_LOCAL:
- check_if_fftw_works(): all errors occurring after COREG_obj.fftw_works has been set are now catched

 components.DeShifter.DESHIFTER:
- correct_shifts():
    - revised buggy if-condition
    - bugfix for wring way of indexing GeoArray in case band2process is None

- updated __version__