changed initialize_parts again to account of the fact that symmetric part filters have half the dimension of non symmetric ones, als changed number of bins used for parts in train_dpm
changed initialize_parts again to account of the fact that symmetric part filters have half the dimension of non symmetric ones, als changed number of bins used for parts in train_dpm

tgebru/cs231b_project1,tgebru/cs231b_project1,tgebru/cs231b_project1