ilastik/applets/nanshe/opNanshePreprocessing.py: Sets opNansheWaveletTransform.IncludeLowerScales to False as this is not needed in preprocessing.
ilastik/applets/nanshe/opNanshePreprocessing.py: Set default values.
tests/nanshe/testOpNansheWaveletTransform.py: Renamed test class.
ilastik/applets/nanshe/opNanshePreprocessing.py: Added dirty checks for slot name.