revert cmake file to original (project is called 'vigra' not 'my_vigra')
nothing
nothing
Snapshot before dropping the feature_type_ vector.  Just extended the topology_ vector to length 8.  Nothing broke!
revert hdf5 files, because I don't need to store additional parameters (e.g., feature_type, offset_x, offset_y)
write the feature_type, offset_x and offset_y into the topology_ variable for saving and loading