Fix household stuff.py

# Reset min/max
for ds in bd.Database("swiss consumption 1.0"):
    for exc in ds.technosphere():
        if exc.get('uncertainty type') == 0 or exc.get('uncertainty_type') == 0:
            exc['minimum'] = exc['maximum'] = np.NaN
            exc.save()

# Get functional unit
ave_hh = bd.get_node(name='ch hh average consumption disaggregated, years 151617')

# Delete the bad one
bd.get_node(name='ch hh all consumption disaggregated, years 151617').delete()