[bug] labels should start from 1

[dmascali]

Very nice code!
I found a small bug that results in missing one cloth category (cape) and in confusing some cateegories a bit.

In data/aligned_dataset.py at line 82 you add 1 to each label:

labels.append(int(label) + 1)

However, in lines 121-123, you didn't do the same:

upperbody = [0, 1, 2, 3, 4, 5]
lowerbody = [6, 7, 8]
wholebody = [9, 10, 11, 12]

Hope it helps.

Best